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Elucidation of gap structure and enhancement of critical current density in iron-based superconductors by swift-particle irradiations

Research Project

Project/Area Number 17H01141
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Condensed matter physics II
Research InstitutionThe University of Tokyo

Principal Investigator

Tsuyoshi Tamegai  東京大学, 大学院工学系研究科(工学部), 准教授 (30183073)

Co-Investigator(Kenkyū-buntansha) 岡安 悟  国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 原子力科学研究所 先端基礎研究センター, 研究主幹 (50354824)
一瀬 中  一般財団法人電力中央研究所, グリッドイノベーション研究本部, 上席研究員 (70371284)
Project Period (FY) 2017-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥44,590,000 (Direct Cost: ¥34,300,000、Indirect Cost: ¥10,290,000)
Fiscal Year 2021: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Fiscal Year 2020: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Fiscal Year 2019: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Fiscal Year 2018: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2017: ¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Keywords鉄系超伝導体 / 粒子線照射効果 / 臨界電流密度 / 超伝導ギャップ構造 / 粒子線照射 / ギャップ構造
Outline of Final Research Achievements

Utilizing defects created by irradiating high-energy particles into iron-based superconductors, we aimed at elucidating the gap structure in the basic side and enhancement of critical current density (Jc) in the applied side.
As a result, we obtained information that the order parameter in iron-based superconductors is not consistent with that which changes sign on different Fermi surfaces.
On the other hand, we enhanced Jc by a factor of ~10 compared with pristine crystals by introducing point and/or columnar defects. In that process, we discovered “anomalous peak effect” in samples with splayed columnar defects. Furthermore, we fabricated round wires of iron-based superconductors, and achieved Jc = 54 kA/cm2 at 4.2 K under 10 T. Utilizing those wires, we constructed a magnet and generated a magnetic field as high as 3.6 kOe.

Academic Significance and Societal Importance of the Research Achievements

高エネルギー粒子線照射により鉄系超伝導体に導入した人工欠陥が、超伝導秩序変数とう発現機構に直結する特性の解明だけでなく、臨界電流密度の増強にも大変強力なツールとなりうることを実証できた。
研究対象を当初想定した鉄系超伝導体のみではなく、遷移金属ダイカルコゲナイド、銅酸化物高温超伝導体、トポロジカル超伝導体と拡大することができたことも特筆に値する。
また、本研究で達成した大きな臨界電流密度は、今後の鉄系超伝導体線材の開発における大きな道標となる。さらに、これらの知見をもとに開発された鉄系超伝導体丸型線材は、近い将来実現される新規高磁場マグネットへの実装が期待される。

Report

(6 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (250 results)

All 2022 2021 2020 2019 2018 2017 Other

All Int'l Joint Research (19 results) Journal Article (69 results) (of which Int'l Joint Research: 32 results,  Peer Reviewed: 69 results,  Open Access: 21 results) Presentation (162 results) (of which Int'l Joint Research: 66 results,  Invited: 22 results)

  • [Int'l Joint Research] Politecnico di Torino(イタリア)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Southeast University/SIMIT, Chinese Academy of Sciences(中国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Ames Laboratory(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Politecnico di Torino(イタリア)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Southeast University/SIMIT, Chinese Academy of Sciences(中国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Indian Institute of Technology, Kanpur(インド)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Politecnico di Torino(イタリア)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Southeast University/SIMIT, Chinese Academy of Sciences(中国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Institute of Solid State Physics(ロシア連邦)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] University of Liege(ベルギー)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Indian Institute of Technology, Kanpur(インド)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Politecnico di Torino(イタリア)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Southeast University/IOP(中国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] National Institute of Materials Physics(ルーマニア)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Politecnico di Torino(イタリア)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Southeast University(中国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Sungkyunkwan University(韓国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Technische Universitat Dresden(ドイツ)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] CNRS(フランス)

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Trapping a magnetic field of 17.89 T in stacked coated conductors by suppression of flux jumps2022

    • Author(s)
      Masahiro Suyama, Sunseng Pyon, Yasuhiro Iijima, Satoshi Awaji, and Tsuyoshi Tamegai,
    • Journal Title

      Supercond. Sci. Technol.

      Volume: 35 Issue: 2 Pages: 02LT01-02LT01

    • DOI

      10.1088/1361-6668/ac4560

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High-frequency ac susceptibility of iron-based superconductors2022

    • Author(s)
      Gianluca Ghigo, Michela Fracasso, Roberto Gerbaldo, Laura Gozzelino, Francesco Laviano, Andrea Napolitano, Guang-Han Cao, Ruslan Prozorov, Tsuyoshi Tamegai, Zhixiang Shi, Xiangzhuo Xing, and Daniele Torsello,
    • Journal Title

      Materials

      Volume: 15 Issue: 3 Pages: 1079-1079

    • DOI

      10.3390/ma15031079

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Electronic transport properties and hydrostatic pressure effect of FeSe0.67Te0.33 single crystals free of phase separation2021

    • Author(s)
      Xing Xiangzhuo、Sun Yue、Yi Xiaolei、Li Meng、Feng Jiajia、Meng Yan、Zhang Yufeng、Li Wenchong、Zhou Nan、He Xiude、Ge Jun-Yi、Zhou Wei、Tamegai Tsuyoshi、Shi Zhixiang
    • Journal Title

      Superconductor Science and Technology

      Volume: 34 Issue: 5 Pages: 055006-055006

    • DOI

      10.1088/1361-6668/abef4e

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Trapping a magnetic field of 14.8 T using stacked coated conductors of 12 mm width2021

    • Author(s)
      Masahiro Suyama, Sunseng Pyon, Yasuhiro Iijima, Satoshi Awaji, and Tsuyoshi Tamegai,
    • Journal Title

      Supercond. Sci. Technol.

      Volume: 34 Issue: 6 Pages: 065004-065004

    • DOI

      10.1088/1361-6668/abf621

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Comparative study of superconducting and normal-state anisotropy in Fe1+yTe0.6Se0.4 superconductors with controlled amounts of interstitial excess Fe2021

    • Author(s)
      Sun Yue、Pan Yongqiang、Zhou Nan、Xing Xiangzhuo、Shi Zhixiang、Wang Jinhua、Zhu Zengwei、Sugimoto Akira、Ekino Toshikazu、Tamegai Tsuyoshi、Kitano Haruhisa
    • Journal Title

      Physical Review B

      Volume: 103 Issue: 22 Pages: 224506-224506

    • DOI

      10.1103/physrevb.103.224506

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effect of controlled artificial disorder on the magnetic properties of EuFe2(As1?xPx)2 ferromagnetic superconductor2021

    • Author(s)
      Sunil Ghimire, Marcin Konczykowski, Kyuil Cho, Makariy Tanatar, Daniele Torsello, Ivan S. Veshchunov, Tsuyoshi Tamegai, Gianluca Ghigo, and Ruslan Prozorov,
    • Journal Title

      Materials

      Volume: 14 Issue: 12 Pages: 3267-3267

    • DOI

      10.3390/ma14123267

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Fabrication of small superconducting coils using (Ba,A)Fe2As2 (A: Na, K) round wires with large critical current densities2021

    • Author(s)
      Sunseng Pyon, Haruto Mori, Tsuyoshi Tamegai, Satoshi Awaji, Hijiri Kito, Shigeyuki Ishida, Yoshiyuki Yoshida, Hideki Kajitani, Norikiyo Koizumi,
    • Journal Title

      Supercond. Sci. Technol.

      Volume: 34 Issue: 10 Pages: 105008-105008

    • DOI

      10.1088/1361-6668/ac0cca

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Critical current density and vortex dynamics in pristine and irradiated KCa2Fe4As4F22021

    • Author(s)
      Sunseng Pyon, Soichi Taya, Yuto Kobayashi, Ayumu Takahashi, Wenjie Li, Toshihiro Taen, Teng Wang, Gang Mu, Hisashi Kitamura, Ataru Ichinose, and Tsuyoshi Tamegai,
    • Journal Title

      Materials

      Volume: 14 Issue: 18 Pages: 5283-5283

    • DOI

      10.3390/ma14185283

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Disorder-robust high-field superconducting phase of FeSe single crystals2021

    • Author(s)
      Zhou Nan、Sun Yue、Xi C. Y.、Wang Z. S.、Zhang J. L.、Zhang Y.、Zhang Y. F.、Xu C. Q.、Pan Y. Q.、Feng J. J.、Meng Y.、Yi X. L.、Pi L.、Tamegai T.、Xing Xiangzhuo、Shi Zhixiang
    • Journal Title

      Physical Review B

      Volume: 104 Issue: 14

    • DOI

      10.1103/physrevb.104.l140504

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Peak Effects in 2H-NbSe2 Single Crystals Induced by Particle Irradiations2021

    • Author(s)
      Wenjie Li, Sunseng Pyon, Satoru Okayasu, and Tsuyoshi Tamegai,
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 1975 Issue: 1 Pages: 012017-012022

    • DOI

      10.1088/1742-6596/1975/1/012003

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Focused ion beam microfabrication of single-crystal nanobridge toward Fe(Te,Se)-based Josephson device2021

    • Author(s)
      Takamaro Miyazawa, Naoki Tadokoro, Tsuyoshi Tamegai, Yue Sun, and Haruhisa Kitano,
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 1975 Issue: 1 Pages: 012010-012010

    • DOI

      10.1088/1742-6596/1975/1/012010

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Anisotropic Critical Current Densities in Ba0.6K0.4Fe2As2 with Splayed Columnar Defects2021

    • Author(s)
      Jiachen Wang, Ayumu Takahashi, Sunseng Pyon, Atsushi Yoshida, Tadashi Kambara, Yue Sun, Haruhisa Kitano, Tsuyoshi Tamegai,
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 1975 Issue: 1 Pages: 012012-012012

    • DOI

      10.1088/1742-6596/1975/1/012012

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Growth and Characterization of Iron-based Superconductor (Ba1-xRbx)Fe2As2 Single Crystals2021

    • Author(s)
      T. Ren, S. Pyon, and T. Tamegai,
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 1975 Issue: 1 Pages: 012013-012013

    • DOI

      10.1088/1742-6596/1975/1/012013

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Crossed-Field Demagnetization of a EuBa2Cu3O7 Coated Conductor with BaHfO3 Nanorods2021

    • Author(s)
      M. Suyama, S. Pyon, Y. Iijima, and T. Tamegai,
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 1975 Issue: 1 Pages: 012014-012014

    • DOI

      10.1088/1742-6596/1975/1/012014

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of Superconducting Coils using (Ba,Na)Fe2As2 Round Wires with Large Critical Current2021

    • Author(s)
      S. Pyon, H. Mori, T. Tamegai, H. Kajitani, N. Koizumi, S. Awaji, H. Kito, S. Ishida and Y. Yoshida,
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 1590 Issue: 1 Pages: 012020-012020

    • DOI

      10.1088/1742-6596/1975/1/012020

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Elucidating the origin of planar defects that enhance critical current density in CaKFe4As4 single crystals2021

    • Author(s)
      Ichinose Ataru、Pyon Sunseng、Tamegai Tsuyoshi、Ishida Shigeyuki
    • Journal Title

      Superconductor Science and Technology

      Volume: 34 Issue: 3 Pages: 034003-034003

    • DOI

      10.1088/1361-6668/abdba7

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhancement of critical current density in (Ba,Na)Fe2As2 round wires using high-pressure sintering2020

    • Author(s)
      Sunseng Pyon, Daisuke Miyawaki, Tsuyoshi Tamegai, Satoshi Awaji, Hijiri Kito, Shigeyuki Ishida, and Yoshiyuki Yoshida,
    • Journal Title

      Supercond. Sci. Technol.

      Volume: 33 Issue: 6 Pages: 065001-065001

    • DOI

      10.1088/1361-6668/ab804c

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Achieving the depairing limit along the c axis in Fe1+yTe1-xSex single crystals2020

    • Author(s)
      Sun Yue、Ohnuma Haruka、Ayukawa Shin-ya、Noji Takashi、Koike Yoji、Tamegai Tsuyoshi、Kitano Haruhisa
    • Journal Title

      Physical Review B

      Volume: 101 Issue: 13 Pages: 134516-134516

    • DOI

      10.1103/physrevb.101.134516

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Quasi-particle evidImaging the effect of drive on the low-field vortex melting phenomenon in Ba0.6K0.4Fe2As2 single crystalence for the nematic state above Tc in SrxBi2Se32020

    • Author(s)
      Ankit Kumar, Amit Jash, Tsuyoshi Tamegai, and S. S. Banerjee,
    • Journal Title

      Phys. Rev. B

      Volume: 101 Issue: 18

    • DOI

      10.1103/physrevb.101.184516

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effects of 6 MeV proton irradiation on vortex ensemble in BaFe2(As0.67P0.33)2 revealed through magnetization measurements and real-space vortex imaging2020

    • Author(s)
      Akiyoshi Park, Ivan Veshchunov, Akinori Mine, Sunseng Pyon, and Tsuyoshi Tamegai,
    • Journal Title

      Phys. Rev. B

      Volume: 101 Issue: 22

    • DOI

      10.1103/physrevb.101.224507

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fully gapped superconductivity without sign reversal in the topological superconductor PbTaSe22020

    • Author(s)
      Sun Yue、Kittaka Shunichiro、Sakakibara Toshiro、Machida Kazushige、Sankar R.、Xu Xiaofeng、Zhou Nan、Xing Xiangzhuo、Shi Zhixiang、Pyon Sunseng、Tamegai Tsuyoshi
    • Journal Title

      Physical Review B

      Volume: 102 Issue: 2 Pages: 024517-024517

    • DOI

      10.1103/physrevb.102.024517

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effects of asymmetric splayed columnar defects in Ba0.6K0.4Fe2As22020

    • Author(s)
      Ayumu Takahashi, Sunseng Pyon, Tadashi Kambara, Atsushi Yoshida, and Tsuyoshi Tamegai,
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 89 Issue: 9 Pages: 094705-094705

    • DOI

      10.7566/jpsj.89.094705

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of proton irradiation on the magnetic superconductor EuFe2(As1-xPx)22020

    • Author(s)
      G. Ghigo, D. Torsello, R. Gerbaldo, L. Gozzelino, R. Gerbaldo, S. Pyon, I. Veshchunov, T. Tamegai, and G. Cao,
    • Journal Title

      Supercond. Sci. Technol.

      Volume: 33 Issue: 9 Pages: 094011-094011

    • DOI

      10.1088/1361-6668/aba355

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Twofold role of columnar defects in iron based superconductors2020

    • Author(s)
      D. Torsello, R. Gerbaldo, L. Gozzelino, F. Laviano, A. Takahashi, A. Park, S. Pyon, A. Ichinose, T. Tamegai, and G. Ghigo,
    • Journal Title

      Supercond. Sci. Technol.

      Volume: 33 Issue: 9 Pages: 094012-094012

    • DOI

      10.1088/1361-6668/aba350

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Developments of (Ba,Na)Fe2As2 and CaKFe4As4 HIP Round Wires2020

    • Author(s)
      T. Tamegai, S. Pyon, D. Miyawaki, Y. Kobayashi, S. Awaji, H. Kito, S. Ishida, Y. Yoshida, K. Takano, H. Kajitani, and N. Koizumi,
    • Journal Title

      Supercond. Sci. Technol.

      Volume: 33 Issue: 10 Pages: 104001-104001

    • DOI

      10.1088/1361-6668/abaa38

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Anisotropic physical properties and large critical current density in KCa2Fe4As4F2 single crystal2020

    • Author(s)
      Sunseng Pyon, Yuto Kobayashi, Ayumu Takahashi, Wenjie Li, Teng Wang, Gang Mu, Ataru Ichinose, Tadashi Kambara, Atsushi Yoshida, and Tsuyoshi Tamegai,
    • Journal Title

      Phys. Rev. Mater.

      Volume: 4 Issue: 10

    • DOI

      10.1103/physrevmaterials.4.104801

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effects of 800 MeV Xe Irradiation on 2H-NbSe2 Single Crystals2020

    • Author(s)
      Wenjie Li, Tsuyoshi Tamegai, Sunseng Pyon, Ayumu Takahashi, Daisuke Miyawaki, and Yuto Kobayashi,
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 1590 Issue: 1 Pages: 012003-012003

    • DOI

      10.1088/1742-6596/1590/1/012003

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of Point Defects Introduced by Co-doping and Proton Irradiation in CaKFe4As42020

    • Author(s)
      Y. Kobayashi, S. Pyon, A. Takahashi, and T. Tamegai,
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 1590 Issue: 1 Pages: 012014-012014

    • DOI

      10.1088/1742-6596/1590/1/012014

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of Splayed Columnar Defects on Critical Current Density in CaKFe4As42020

    • Author(s)
      A. Takahashi, S. Pyon, Y. Kobayashi, T. Kambara, A. Yoshida, S. Okayasu, A. Ichinose, and T. Tamegai,
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 1590 Issue: 1 Pages: 012015-012015

    • DOI

      10.1088/1742-6596/1590/1/012015

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fabrication and Characterizations of KCa2Fe4A4F2 Superconducting HIP Wires2020

    • Author(s)
      S. Pyon, D. Miyawaki, T. Tamegai, H. Kajitani, N. Koizumi, S. Awaji, H. Kito, S. Ishida, and Y. Yoshida,
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 1590 Issue: 1 Pages: 012026-012026

    • DOI

      10.1088/1742-6596/1590/1/012026

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fabrication of (Ba,Na)Fe2As2 Round Wires and Tapes using HIP Process2020

    • Author(s)
      D. Miyawaki, S. Pyon, S. Awaji, H. Kajitani, N. Koizumi, H. Kito, S. Ishida, Y. Yoshida, and T. Tamegai,
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 1590 Issue: 1 Pages: 012027-012027

    • DOI

      10.1088/1742-6596/1590/1/012027

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fabrications and evaluations of critical current density of (Ba,Na)Fe2As2 HIP round wires2020

    • Author(s)
      Daisuke Miyawaki, Sunseng Pyon, Takahiro Suwa, Katsutoshi Takano, Hideki Kajitani, Norikiyo Koizumi, Satoshi Awaji, and Tsuyoshi Tamegai
    • Journal Title

      Physica C

      Volume: 568 Pages: 1353580-1353580

    • DOI

      10.1016/j.physc.2019.1353580

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Low-field vortex melting in a single crystal of Ba0.6K0.4Fe2As22020

    • Author(s)
      Ankit Kumar, Sayantan Ghosh, Tsuyoshi Tamegai, and S. S. Banerjee
    • Journal Title

      Phys. Rev. B

      Volume: 101 Issue: 1

    • DOI

      10.1103/physrevb.101.014502

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Single crystal growth and physical property characterization of intermetallic ternary phosphide ZrP1.5Se0.52020

    • Author(s)
      Meng Li, Yan Meng, Xiangzhuo Xing, Xiaolei Yi, Chunqiang Xu, Jiajia Feng, Bencheng Lin, Wenchong Li, Tsuyoshi Tamegai, and Zhixiang Shi
    • Journal Title

      J. Phys. Chem. Solids

      Volume: 141 Pages: 109423-109423

    • DOI

      10.1016/j.jpcs.2020.109423

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Demonstration of excellent Jc performance in (AE,Na)Fe2As2 (AE: Sr, Ba) PIT wires2019

    • Author(s)
      T. Tamegai, T. Suwa, D. Miyawaki, S. Pyon, K. Takano, H. Kajitani, N. Koizumi, and S. Awaji
    • Journal Title

      IEEE Trans. Appl. Supercond.

      Volume: 29 Issue: 5 Pages: 1-5

    • DOI

      10.1109/tasc.2019.2905159

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report 2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Comprehensive Eliashberg analysis of microwave conductivity and penetration depth of K-, Co-, and P-substituted BaFe2As22019

    • Author(s)
      D. Torsello, G. A. Ummarino, L. Gozzelino, T. Tamegai, and G. Ghigo
    • Journal Title

      Phys. Rev. B

      Volume: 99 Issue: 13

    • DOI

      10.1103/physrevb.99.134518

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Zero-energy vortex bound state in the superconducting topological surface state of Fe(Se,Te)2019

    • Author(s)
      Machida T.、Sun Y.、Pyon S.、Takeda S.、Kohsaka Y.、Hanaguri T.、Sasagawa T.、Tamegai T.
    • Journal Title

      Nature Materials

      Volume: 18 Issue: 8 Pages: 811-815

    • DOI

      10.1038/s41563-019-0397-1

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Quasiparticle Evidence for the Nematic State above Tc in SrxBi2Se32019

    • Author(s)
      Yue Sun, Shunichiro Kittaka, Toshiro Sakakibara, Kazushige Machida, Jinghui Wang, Jinsheng Wen, Xiangzhuo Xing, Zhixiang Shi, and Tsuyoshi Tamegai
    • Journal Title

      Phys. Rev. Lett.

      Volume: 123 Issue: 2 Pages: 027002-027002

    • DOI

      10.1103/physrevlett.123.027002

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Review of annealing effects and superconductivity in Fe1+yTe1-xSex superconductors2019

    • Author(s)
      Sun Yue、Shi Zhixiang、Tamegai Tsuyoshi
    • Journal Title

      Superconductor Science and Technology

      Volume: 32 Issue: 10 Pages: 103001-103001

    • DOI

      10.1088/1361-6668/ab30c2

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effects of Swift-Particle Irradiations on Critical Current Density in CaKFe4As42019

    • Author(s)
      A. Takahashi, S. Pyon, S. Okayasu, S. Ishida, A. Iyo, H. Eisaki, M. Imai, H. Abe, T. Terashima, and T. Tamegai
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 1293 Issue: 1 Pages: 012013-012013

    • DOI

      10.1088/1742-6596/1293/1/012013

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Recent Progress of Iron Based Superconducting Round Wires2019

    • Author(s)
      S. Pyon, T. Tamegai, K. Takano, H. Kajitani, N. Koizumi, and S. Awaji
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 1293 Issue: 1 Pages: 012042-012042

    • DOI

      10.1088/1742-6596/1293/1/012042

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fabrication of a Compact High-field Magnet by Coated Conductor Stacks2019

    • Author(s)
      T. Hashimoto, S. Pyon, Y. Iijima, S. Sugiura, S. Uji, T. Terashima, and T. Tamegai
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 1293 Issue: 1 Pages: 012038-012038

    • DOI

      10.1088/1742-6596/1293/1/012038

    • NAID

      130008146630

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fabrication of (Ba,Na)Fe2As2 Round Wires using HIP Process2019

    • Author(s)
      D. Miyawaki, S. Pyon, T. Tamegai, S. Awaji, K. Takano, H. Kajitani, and N. Koizumi
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 1293 Issue: 1 Pages: 012043-012043

    • DOI

      10.1088/1742-6596/1293/1/012043

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reemergence of superconductivity by 4d transition-metal Pd doping in over-doped 112-type iron pnictide superconductors Ca0.755La0.245FeAs22019

    • Author(s)
      Xiangzhuo Xing, Zhanfeng Li, Ivan Veshchunov, Xiaolei Yi, Yan Meng, Meng Li, Bencheng Lin, Tsuyoshi Tamegai, and Zhixiang Shi
    • Journal Title

      New J. Phys.

      Volume: 21 Issue: 9 Pages: 093015-093015

    • DOI

      10.1088/1367-2630/ab3d75

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Numerical investigation of critical states in superposed superconducting films2019

    • Author(s)
      L. Burger, I. S. Veshchunov, T. Tamegai, A. V. Silhanek, S. Nagasawa, M. Hidaka, and B. Vanderheyden
    • Journal Title

      Supercond. Sci. Technol.

      Volume: 32 Issue: 12 Pages: 125010-125010

    • DOI

      10.1088/1361-6668/ab4b18

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Microwave analysis of the interplay between magnetism and superconductivity in EuFe2(As1-xPx)2 single crystals2019

    • Author(s)
      G. Ghigo, D. Torsello, L. Gozzelino, T. Tamegai, I. S. Veshchunov, S. Pyon, W. Jiao, G.-H. Cao, S. Yu. Grebenchuk, I. A. Golovchanskiy, V. S. Stolyarov, and D. Roditchev
    • Journal Title

      Phys. Rev. Res.

      Volume: 1 Issue: 3

    • DOI

      10.1103/physrevresearch.1.033110

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Deviation from canonical collective creep behavior in Li0.8Fe0.2OHFeSe2019

    • Author(s)
      Yue Sun, Sunseng Pyon, Run Yang, Xianggang Qiu, Jiajia Feng, Zhixiang Shi, and Tsuyoshi Tamegai
    • Journal Title

      Journal of Physical Society of Japan

      Volume: 88 Issue: 3 Pages: 034703-034703

    • DOI

      10.7566/jpsj.88.034703

    • NAID

      210000135130

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Large and significantly anisotropic critical current density induced by planar defects in CaKFe4As4 single crystals2019

    • Author(s)
      Sunseng Pyon, Ayumu Takahashi, Ivan Veshchunov, Tsuyoshi Tamegai, Shigeyuki Ishida, Akira Iyo, Hiroshi Eisaki, Motoharu Imai, Hideki Abe, Taichi Terashima, Ataru Ichinose
    • Journal Title

      Physical Review B

      Volume: 99 Issue: 10

    • DOI

      10.1103/physrevb.99.104506

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of Swift-Particle Irradiations on Critical Current Density in CaKFe4As42019

    • Author(s)
      A. Takahashi, S. Pyon, S. Okayasu, S. Ishida, A. Iyo, H. Eisaki, M. Imai, H. Abe, T. Terashima and T. Tamegai
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 印刷中

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Promising characteristics in Ag-sheathed (Sr,Na)Fe2As2tape2018

    • Author(s)
      Takahiro Suwa, Sunseng Pyon, TsuyoshiTamegai, and Satoshi Awaji,
    • Journal Title

      Applied Physics Express

      Volume: 11 Issue: 6 Pages: 063101-063101

    • DOI

      10.7567/apex.11.063101

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Disorder-sensitive nodelike small gap in FeSe2018

    • Author(s)
      Sun Yue、Kittaka Shunichiro、Nakamura Shota、Sakakibara Toshiro、Zhang Peng、Shin Shik、Irie Koki、Nomoto Takuya、Machida Kazushige、Chen Jingting、Tamegai Tsuyoshi
    • Journal Title

      Physical Review B

      Volume: 98 Issue: 6

    • DOI

      10.1103/physrevb.98.064505

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] AC magnetic response of superconducting single crystals exhibiting a second peak on the DC magnetization curves2018

    • Author(s)
      L. Miu, A. Ionescu, A. Crisan, D. Miu, T. Petrisor, A. Park, and T. Tamegai
    • Journal Title

      Physica C

      Volume: 555 Pages: 1-6

    • DOI

      10.1016/j.physc.2018.10.002

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Fabrications and Characterizations of CaKFe4As4 Round Wires Sintered at High Pressure2018

    • Author(s)
      Sunseng Pyon, Daisuke Miyawaki, Ivan Veshchunov, Tsuyoshi Tamegai, Katsutoshi Takano, Hideki Kajitani, Norikiyo Koizumi, and Satoshi Awaji
    • Journal Title

      Applied Physics Express

      Volume: 11 Issue: 12 Pages: 123101-123101

    • DOI

      10.7567/apex.11.123101

    • NAID

      210000136429

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Multiple topological states in iron-based superconductors2018

    • Author(s)
      P.Zhang, Z. Wang, X. Wu, K. Yaji, Y. Ishida, Y. Kohama, G. Dai, Y. Sun, C. Bareille1, K. Kuroda, T. Kondo1, K. Okazaki, K. Kindo1, X. Wang, C. Jin, J. Hu, R. Thomale, K. Sumida, S. Wu, K. Miyamoto, T. Okuda, H. Ding, G. D. Gu, T. Tamegai, T. Kawakami, M. Sato, S. Shin
    • Journal Title

      Nature Physics

      Volume: 15 Issue: 1 Pages: 41-47

    • DOI

      10.1038/s41567-018-0280-z

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Fabrication Process and Pressure Dependence of Critical Current Density in Ba1-xKxFe2As2 Superconducting HIP Wires2018

    • Author(s)
      Sunseng Pyon, Takahiro Suwa, Tsuyoshi Tamegai, Katsutoshi Takano, Hideki Kajitani, Norikiyo Koizumi, Satoshi Awaji
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 1054 Pages: 012044-012044

    • DOI

      10.1088/1742-6596/1054/1/012044

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Anisotropy of Critical Current Densities in Ba1-xKxFe2As2 and Ba(Fe1-xCox)2As2 with Splayed Columnar Defects2018

    • Author(s)
      N. Ito, S. Pyon, T. Kambara, A. Yoshida, S. Okayasu, A. Ichinose, T. Tamegai
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 1054 Pages: 012020-012020

    • DOI

      10.1088/1742-6596/1054/1/012020

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhancement of Critical Current Density in AgSn-sheathed (Sr,Na)Fe2As2 Superconducting Tapes2018

    • Author(s)
      T. Suwa, S. Pyon, T. Tamegai, S. Awaji
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 1054 Pages: 012045-012045

    • DOI

      10.1088/1742-6596/1054/1/012045

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of heavy-ion irradiation on the microwave surface impedance of (Ba1-xKx)Fe2As2 single crystals2018

    • Author(s)
      G. Ghigo, D. Torsello, R. Gerbaldo, L. Gozzelino, F. Laviano, and T. Tamegai
    • Journal Title

      Superconductor Science and Technology

      Volume: 31 Issue: 3 Pages: 034006-034006

    • DOI

      10.1088/1361-6668/aaa858

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Field-driven transition in Ba1-xKxFe2As2 superconductor with splayed columnar defects2018

    • Author(s)
      Akiyoshi Park, Sunseng Pyon, Kengo Ohara, Nozomu Ito, Tsuyoshi Tamegai, Tadashi Kambara, Atsushi Yoshida, and Ataru Ichinose
    • Journal Title

      Physical Review B

      Volume: 97 Issue: 6

    • DOI

      10.1103/physrevb.97.064516

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Manipulating superconducting phases via current-driven magnetic states in rare-earth-doped CaFe2As22018

    • Author(s)
      Soon-Gil Jung, Soohyeon Shin, Harim Jang, Won Nam Kang, Jeong Hwan Han, Akinori Mine, Tsuyoshi Tamegai, and Tuson Park
    • Journal Title

      NPG Asia Materials

      Volume: 10 Issue: 4 Pages: 156-162

    • DOI

      10.1038/s41427-018-0030-9

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Improvements of fabrication processes and enhancement of critical current densities in (Ba,K)Fe2As2HIP wires and tapes2018

    • Author(s)
      Sunseng Pyon, Takahiro Suwa, Tsuyoshi Tamegai, Katsutoshi Takano, Hideki Kajitani, Norikiyo Koizumi, Satoshi Awaji, Nan Zhou, and Zhixiang Shi
    • Journal Title

      Superconductor Science and Technology

      Volume: 31 Issue: 5 Pages: 055016-055016

    • DOI

      10.1088/1361-6668/aab8c3

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Close proximity of FeSe to a magnetic quantum critical point as revealed by high-resolution mSR measurements2018

    • Author(s)
      V. Grinenko, R. Sarkar, P. Materne, S. Kamusella, A. Yamamshita, Y. Takano, Y. Sun, T. Tamegai, D. V. Efremov, S. L. Drechsler, J. C. Orain, T. Goko, R. Scheuermann, H. Luetkens
    • Journal Title

      Physical Review B

      Volume: 97 Issue: 20

    • DOI

      10.1103/physrevb.97.201102

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Domain Meissner state and spontaneous vortex-antivortex generation in the ferromagnetic superconductor EuFe2(As0.79P0.21)22018

    • Author(s)
      V. S. Stolyarov, I. S. Veshchunov, S. Yu. Grebenchuk, D. S. Baranov, I. A. Golovchanskiy, A.G. Shishkin, N. Zhou, Z. X. Shi, X. F. Xu, S. Pyon, Yue Sun, Wenhe Jiao, Guanghan Cao, L. Ya. Vinnikov, A. A. Golubov, T. Tamegai, A. I. Buzdin, and D. Roditchev
    • Journal Title

      Science Advances

      Volume: 4 Issue: 7

    • DOI

      10.1126/sciadv.aat1061

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Quasiparticle scattering in 3 MeV proton irradiated BaFe2(As0.67P0.33)22018

    • Author(s)
      Akiyoshi Park, Sunseng Pyon, Yue Sun, Ivan Veshchunov, Jingting Chen, Nozomu Ito, Takahiro Suwa, Tsuyoshi Tamegai, Hisashi Kitamura, and Ataru Ichinose
    • Journal Title

      Physical Review B

      Volume: 98 Issue: 5

    • DOI

      10.1103/physrevb.98.054512

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Symmetry-unprotected nodes or gap minima in the s++ state of monocrystalline FeSe2017

    • Author(s)
      Yue Sun, Akiyoshi Park, Sunseng Pyon, Tsuyoshi Tamegai, Tadashi Kambara, and Ataru Ichinose,
    • Journal Title

      Physical Review B

      Volume: B 96 Issue: 14

    • DOI

      10.1103/physrevb.96.140505

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Penetration depth of Ba1-xKxFe2As2 single crystals, explained within a multiband Eliashberg s+- approach2017

    • Author(s)
      G. Ghigo, G. A. Ummarino, L. Gozzelino, and T. Tamegai
    • Journal Title

      Physical Review B

      Volume: B 96 Issue: 1

    • DOI

      10.1103/physrevb.96.014501

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effects of disorder induced by heavy-ion irradiation on (Ba1-xKx)Fe2As2 single crystals, within the three-band Eliashberg s±wave model2017

    • Author(s)
      G. Ghigo, G. A. Ummarino, L. Gozzelino, R. Gerbaldo, F. Laviano, D. Torsello, and T. Tamegai
    • Journal Title

      Scientific Reports

      Volume: 7 Issue: 1 Pages: 1-9

    • DOI

      10.1038/s41598-017-13303-5

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Gap structure of FeSe determined by angle-resolved specific heat measurements in applied rotating magnetic field2017

    • Author(s)
      Y. Sun, S. Kittaka, S. Nakamura, T. Sakakibara, K. Irie, T. Nomoto, K. Machida, J. Chen, and T. Tamegai
    • Journal Title

      Phys. Rev. B

      Volume: 96 Issue: 22

    • DOI

      10.1103/physrevb.96.220505

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Present status of PIT round wires of 122-type iron-based superconductors2017

    • Author(s)
      T. Tamegai, T. Suwa, S. Pyon, H. Kajitani, K. Takano, N. Koizumi, S. Awaji, and K. Watanabe
    • Journal Title

      IOP Conf. Ser. Mater. Sci. Eng.

      Volume: 279 Pages: 012028-012028

    • DOI

      10.1088/1757-899x/279/1/012028

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] Novel Behavior of Relaxation of Magnetization in a Remagnetized (Ba,Rb)Fe2As22022

    • Author(s)
      任統
    • Organizer
      第 13回 低温科学研究センター研究交流会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ミスフィット層状超伝導体の異方性の測定2022

    • Author(s)
      松澤創一郎
    • Organizer
      第 13回 低温科学研究センター研究交流会
    • Related Report
      2021 Annual Research Report
  • [Presentation] TDGL方程式の数値シミュレーションによる微小超伝導体における磁束配置の可視化2022

    • Author(s)
      松前拓実, 卞舜生, 為ヶ井強
    • Organizer
      第77回日本物理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Vortex Dynamics and Critical Current Densities in Cuprate Superconductors with Splayed Columnar Defects2022

    • Author(s)
      J. Wang, N. Ito, S. Pyon, T. Nishizaki, and T. Tamegai
    • Organizer
      第77回日本物理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 積層コーテッドコンダクターの加工方法の評価と円筒型マグネットの試作2022

    • Author(s)
      陶山正裕, 卞舜生, 飯島康裕, 為ヶ井強
    • Organizer
      第77回日本物理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] (Ba,A)Fe2As2(A:Na,K)丸線の曲げ歪み評価と超伝導コイルの作製2022

    • Author(s)
      卞舜生, 伊藤嵩真, 為ヶ井強, 梶谷秀樹,小泉徳潔, 鬼頭聖, 淡路智
    • Organizer
      第77回日本物理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Magnetic-field trapping in (Ba,Na)Fe2As2 bulk2022

    • Author(s)
      Wenxi Wu, Sunseng Pyon, and Tsuyoshi Tamegai
    • Organizer
      第77回日本物理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ミスフィット層状超伝導体の異方性の測定2022

    • Author(s)
      松澤創一郎, 一瀬中, 卞舜生, 為ヶ井強
    • Organizer
      第77回日本物理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Novel Behavior of Relaxation of Magnetization in a Remagnetized (Ba,Rb)Fe2As22022

    • Author(s)
      任 統, 卞舜生, 為ヶ井強
    • Organizer
      第77回日本物理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Anomalous peak effect in (Ba,A)Fe2As2 (A: Rb, K) single crystals with splayed columnar defects2022

    • Author(s)
      Yuhang Zu, Tong Ren, Sunseng Pyon, Satoru Okayasu, and Tsuyoshi Tamegai
    • Organizer
      第77回日本物理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Impacts of Defects on the Peak Effect in NbSe22021

    • Author(s)
      T. Tamegai,W. J. Li, S. Pyon, S. Okayasu, T. Kambara, A. Yoshida, Y. Kanai, and A. Ichinose
    • Organizer
      Vortex2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Out-of-plane transport properties of FeSe single crystal2021

    • Author(s)
      Y. Sun, T. Miyazawa, T. Tamegai, and H. Kitano
    • Organizer
      QLC2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Contribution of Josephson current and its nonequilibrium effects in the c axis short weak links of FeTe0.6Se0.4 superconductors2021

    • Author(s)
      T. Miyazawa, S. Horikawa, T. Tamegai, Y. Sun and H. Kitano
    • Organizer
      QLC2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 磁気緩和に対する粒子線照射効果 鉄系超伝導体、NbSe2を中心に2021

    • Author(s)
      為ヶ井強
    • Organizer
      第3回材料研究会/九州・西日本支部合同研究会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 不足ドープ組成のBaFe2(As1-xPx)22021

    • Author(s)
      神保恒大郎, 孫悦, 為ヶ井強A, 北野晴久
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] サイズ調整したBa1-xNaxFe2As2丸線のIc向上による超伝導コイルの性能向上2021

    • Author(s)
      卞舜生, 為ヶ井強, 梶谷秀樹, 小泉徳潔, 鬼頭聖, 淡路智
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] トポロジカル超伝導体SrxBi2Se3単結晶における超伝導特性向上と電気抵抗率の磁場角度依存性2021

    • Author(s)
      松前拓実, 卞舜生, 為ヶ井強
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 積層コーテッドコンダクターにおける熱磁気不安定性の抑制と強磁場捕捉2021

    • Author(s)
      陶山正裕, 卞舜生, 飯島康裕, 淡路智, 為ヶ井強
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Meissner Hole and Vortex Dynamics in Pristine and Irradiated (Ba,Rb)Fe2As22021

    • Author(s)
      任統, 卞舜生, 為ヶ井強
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Pinning Properties and Critical Current Densities in 90 K-phase and 60 K-phase YBa2Cu3O7 with Splayed Columnar Defects2021

    • Author(s)
      Jiachen Wang, Nozomu Ito, Sunseng Pyon, Terukazu Nishizaki, Tsuyoshi Tamegai
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Effects of 2.6 GeV U irradiation on NbSe2 single crystals2021

    • Author(s)
      Wenjie Li, Sunseng Pyon, Ataru Ichinose, Atsushi Yoshida, Tadashi Kambara, Yasuyuki Kanai, Satoru Okayasu, Tsuyoshi Tamegai
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Depairing critical current density of FeSe single crystal2021

    • Author(s)
      Y. Sun, T. Miyazawa, T. Tamegai, H. Kitano
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ミスフィット層状化合物(BiSe)1+δNbSe2が示す二次元的超伝導特性2021

    • Author(s)
      松澤創一郎, 松前拓実, 一瀬中, 卞舜生, 為ヶ井強
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Developments of superconducting coils using (Ba,A)Fe2As2 (A: Na, K) round wires with large critical current densities2021

    • Author(s)
      Tsuyoshi Tamegai, Sunseng Pyon, Haruto Mori, Satoshi Awaji, Hijiri Kito, Shigeyuki Ishida, Yoshiyuki Yoshida, Hideki Kajitani, Norikiyo Koizumi
    • Organizer
      EUCAS2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] CaKFe4As4とKCa2Fe4As4F2 における磁束状態2021

    • Author(s)
      為ヶ井 強, 小林 優斗, 卞 舜生, T. Wang, G. Mu, 岡安 悟, 一瀬 中
    • Organizer
      ワークショップ「超伝導物質、トポロジカル物質」
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Interplay between Effects of Intrinsic and Artificial Defects on Jc in CaKFe4As42021

    • Author(s)
      T. Tamegai, A. Takahashi, Y. Kobayashi, S. Pyon, T. Kambara, A. Yoshida, S. Okayasu, A. Ichinose
    • Organizer
      ICSM2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Peak Effects in 2H-NbSe2 Single Crystals Introduced with Artificial Defects by Particle Irradiations2021

    • Author(s)
      W. J. Li, S. Pyon, A. Ichinose, S. Okayasu, and T. Tamegai
    • Organizer
      ISS2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Electrical Transport and Magnetic Properties of High-Quality SrxBi2Se3 Single Crystals Obtained by Annealing2021

    • Author(s)
      Takumi Matsumae, Sunseng Pyon, and Tsuyoshi Tamegai
    • Organizer
      ISS2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Characterizations of Anisotropic Superconductivity in (BiSe)1+δNbSe22021

    • Author(s)
      Soichiro Matsuzawa, Sunseng Pyon, and Tsuyoshi Tamegai
    • Organizer
      ISS2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of superconducting coil using size adjusted (Ba,Na)Fe2As2 long round wire2021

    • Author(s)
      Sunseng Pyon, Tsuyoshi Tamegai, Hideki Kajitani, Norikiyo Koizumi, Satoshi Awaji, Hijiri Kito, Shigeyuki Ishida, and Yoshiyuki Yoshida
    • Organizer
      ISS2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Tracking the Meissner Hole and Relaxation of Magnetization in (Ba,Rb)Fe2As22021

    • Author(s)
      Tong Ren, Senseng Pyon, and Tsuyoshi Tamegai
    • Organizer
      ISS2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Vortex Dynamics and Critical Current Densities in 90 K-phase and 60 K-phase YBa2Cu3O7 with Splayed Columnar Defects2021

    • Author(s)
      Jiachen Wang, Nozomu Ito, Sunseng Pyon, Terukazu Nishizaki, and Tsuyoshi Tamegai
    • Organizer
      ISS2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Anisotropic Critical Current Densities in Ba1-xKxFe2As2 with Splayed Columnar Defects2021

    • Author(s)
      Jiachen Wang
    • Organizer
      第 12 回 低温科学研究センター研究交流会
    • Related Report
      2020 Annual Research Report
  • [Presentation] トポロジカル超伝導体 SrxBi2Se3単結晶の成長と超伝導転移に対するアニール効果2021

    • Author(s)
      松前 拓実
    • Organizer
      第 12 回 低温科学研究センター研究交流会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Anisotropic Critical Current Densities in Ba0.6K0.4Fe2As2 and YBa2Cu3O7 with Splayed Columnar Defects2021

    • Author(s)
      Jiachen Wang, Nozomu Ito, Sunseng Pyon, Terukazu Nishizaki, Yue Sun, Haruhisa Kitano, Tsuyoshi Tamegai
    • Organizer
      第76回日本物理学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Out-of-plane transport property of FeSe single crystal2021

    • Author(s)
      Y. Sun, T. Miyazawa, T. Tamegai, H. Kitano
    • Organizer
      第76回日本物理学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Ba1-xAexFe2As2(Ae:Na,K)丸線を用いた超伝導コイルの性能向上2021

    • Author(s)
      卞舜生, 森春仁, 為ヶ井強, 梶谷秀樹, 小泉徳潔, 鬼頭聖, 淡路智
    • Organizer
      第76回日本物理学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 122型鉄系超伝導体(Ba0.5K0.5)Fe2As2におけるCo置換の臨界電流密度への効果2021

    • Author(s)
      小林優斗, 卞舜生, 為ヶ井強
    • Organizer
      第76回日本物理学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] トポロジカル超伝導体SrxBi2Se3単結晶の成長と超伝導転移に対するアニール効果2021

    • Author(s)
      松前拓実, 卞舜生, 松澤創一郎, 為ヶ井強
    • Organizer
      第76回日本物理学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 積層コーテッドコンダクターと鉄系バルク体を用いたハイブリッド捕捉磁場マグネット2021

    • Author(s)
      陶山正裕, 卞舜生, 飯島康裕, 淡路智, 為ヶ井強
    • Organizer
      第76回日本物理学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Critical Current Density and Vortex Dynamics in Pristine and Irradiated (Ba1-xRbx)Fe2As22021

    • Author(s)
      任統, 卞舜生, 為ヶ井強
    • Organizer
      第76回日本物理学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Magnetic relaxation in 2H-NbSe2 with splayed columnar defects2021

    • Author(s)
      Wenjie Li, Sunseng Pyon, Ataru Ichinose, Satoru Okayasu, and Tsuyoshi Tamegai
    • Organizer
      第76回日本物理学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] FIBピックアップ法による鉄カルコゲナイド超伝導体の面間ナノブリッジ素子の作製と電流電圧特性2021

    • Author(s)
      宮沢貴麿, 田所直紀, 為ヶ井強, 孫悦, 北野晴久
    • Organizer
      第76回日本物理学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] BaFe2(As1-xPx)2単結晶における面間微小ブリッジの作製と臨界電流密度測定2021

    • Author(s)
      神保恒大郎, 峯直輝, 孫悦, 為ヶ井強, 北野晴久
    • Organizer
      第76回日本物理学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] CaKFe2As2とKCa2Fe4As4F2 における磁束状態2021

    • Author(s)
      為ヶ井 強, 小林優斗, 多屋奏一, 卞 舜生, T. Wang, G. Mu, 石田茂之, 一瀬 中, 岡安悟, 神原 正,吉田 敦
    • Organizer
      超伝導物質・トポロジカル物質2020 ワークショップ
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Achieving the depairing limit along c-axis in Fe(Te,Se) single crystals2020

    • Author(s)
      Y. Sun, H. Ohnuma, S. Ayukawa, T. Noji, Y. Koike, T. Tamegai, H. Kitano
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 1144型鉄系超伝導体CaK(Fe1-xCox)4As4におけるスプレイド柱状欠陥の臨界電流密度への効果2020

    • Author(s)
      小林優斗, 卞舜生, 神原正, 吉田敦, 岡安悟, 一瀬中, 為ヶ井強
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Ba1-xAexFe2As2(Ae:Na,K)丸線を用いた超伝導コイルの開発2020

    • Author(s)
      卞舜生, 為ヶ井強, 梶谷秀樹, 小泉徳潔, 鬼頭聖, 淡路智
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] トポロジカル超伝導体SrxBi2Se3単結晶の成長とネマティックドメインの観測2020

    • Author(s)
      松前拓実, 為ヶ井強, 卞舜生
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 鉄系超伝導体(BaxRb1-x)Fe2As2の単結晶成長と評価2020

    • Author(s)
      任統, 卞舜生, 為ヶ井強
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 積層コーテッドコンダクターを用いた強磁場マグネット2020

    • Author(s)
      陶山正裕, 卞舜生, 飯島康裕, 淡路智, 為ヶ井強
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Fe(Te,Se)単結晶の面内微小ブリッジ素子の作製と対破壊電流密度測定2020

    • Author(s)
      峯直輝, 孫悦, 堀川舜平, 平祥樹, 為ヶ井強, 北野晴久
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Magnetic relaxation in 2H-NbSe2 single crystals with columnar defects2020

    • Author(s)
      Wenjie Li, Sunseng Pyon, Ataru Ichinose, Satoru Okayasu, Tsuyoshi Tamegai
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Fabrications and Characterizations of (Ba,Na)Fe2As2 Wires and Tapes2020

    • Author(s)
      T. Tamegai, D. Miyawaki, S. Pyon, W. X. Wu, H. Kajitani, N. Koizumi, S. Awaji
    • Organizer
      Applied Superconductivity 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Lattice expansion, peak effect, and pinning landscape in 2H-NbSe2 single crystals after particle irradiation2020

    • Author(s)
      W. J. Li, S. Pyon, A. Ichinose, S. Okayasu, and T. Tamegai
    • Organizer
      ISS2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of Superconducting Coils using (Ba,Na)Fe2As2 Round Wires with Large Critical Current2020

    • Author(s)
      S. Pyon, H. Mori, T. Tamegai, H. Kajitani, N. Koizumi, S. Awaji, H. Kito, S. Ishida, and Y Yoshida
    • Organizer
      ISS2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Growth and Characterization of Iron-based Superconductor (Ba1-xRbx)Fe2As2 Single Crystals2020

    • Author(s)
      T. Ren, S. Pyon, and T. Tamegai
    • Organizer
      ISS2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Crossed-Field Demagnetization of a BaHfO3-EuBa2Cu3O7 Coated Conductor2020

    • Author(s)
      M. Suyama, S. Pyon, Y. Iijima, and T. Tamegai
    • Organizer
      ISS2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Anisotropic Critical Current Densities in Ba0.6K0.4Fe2As2 Superconductors with Splayed Columnar Defects2020

    • Author(s)
      J. Wang, A. Takahashi, S. Pyon, A. Yoshida, T. Kambara, Y. Sun, H. Kitano, and T. Tamegai
    • Organizer
      ISS2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Focused ion beam microfabrication of single-crystal nanobridge toward Fe(Te,Se)-based Josephson device2020

    • Author(s)
      T. Miyazawa, N. Tadokoro, T. Tamegai, Y. Sun, and H. Kitano
    • Organizer
      ISS2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Impacts of Artificial Defects on Vortex Pinning in Iron-based Superconductors2020

    • Author(s)
      T. Tamegai, A. Takahashi, Y. Kobayashi, S. Pyon, T. Kambara, A. Yoshida, S. Okayasu, A. Ichinose
    • Organizer
      10th ACASC/2nd Asian-ICMC/CSSJ Joint Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ACa2Fe4As4F2 (A = K, Rb)における磁束状態2020

    • Author(s)
      為ヶ井 強, 小林 優斗, 卞 舜生, T. Wang, G. Mu, 岡安 悟, 一瀬 中
    • Organizer
      つくば-柏-本郷超伝導かけはしプロジェクトワークショップ
    • Related Report
      2019 Annual Research Report
  • [Presentation] CaKFe4As4における重イオン照射効果2020

    • Author(s)
      小林 優斗、高橋 歩夢, 卞 舜生, 神原 正, 吉田 敦, 岡安悟, 一瀬中 ,為ヶ井強
    • Organizer
      つくば-柏-本郷超伝導かけはしプロジェクトワークショップ
    • Related Report
      2019 Annual Research Report
  • [Presentation] Developments of (Ba,Na)Fe2As2 and CaKFe4As4 HIP Round Wires2020

    • Author(s)
      T. Tamegai, S. Pyon, D. Miyawaki, S. Awaji, H. Kito, S. Ishida, Y. Yoshida, K. Takano, H. Kajitani, N. Koizumi
    • Organizer
      Iron-based Superconductors: advances towards applications
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Study of vortex pinning anisotropy in irradiated Ba122 superconductors by quantitative magneto-optical imaging2020

    • Author(s)
      F. Laviano, R. Gerbaldo , G. Ghigo, L. Gozzelino, A. Napolitano, D. Torsello, T. Tamegai
    • Organizer
      Iron-based Superconductors: advances towards applications
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ピックアップ法による鉄カルコゲナイド微小試料の作製と面間微小ブリッジの電流電圧特性2020

    • Author(s)
      宮沢貴麿, 田所直紀, 堀川舜平, 為ヶ井強, 孫悦, 北野晴久
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Effects of Multiple Defects on 2H-NbSe2 Single Crystals2020

    • Author(s)
      李文杰, 為ヶ井強, 卞舜生, 高橋歩夢, 宮脇大輔, 小林優斗
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Fe(Se,Te)の過剰鉄近傍におけるYu-Shiba-Russinov状態2020

    • Author(s)
      町田理, 孫悦, 卞舜生, 竹田駿, 幸坂祐生, 花栗哲郎, 笹川崇男, 為ヶ井強
    • Organizer
      日本物理学会第77回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] トポロジカル超伝導体に対する局所磁場測定2020

    • Author(s)
      任統, 卞舜生, 為ヶ井強
    • Organizer
      日本物理学会第78回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] アニール処理されたFe(Te,Se)単結晶における過剰鉄除去効果と微小ブリッジによる面内臨界電流密度測定2020

    • Author(s)
      峯直輝, 孫悦, 堀川舜平, 平祥樹, 為ヶ井強, 北野晴久
    • Organizer
      日本物理学会第79回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 1144型鉄系超伝導体CaK(Fe1-xCox)4As4における柱状欠陥導入による臨界電流密度の向上2020

    • Author(s)
      小林優斗, 卞舜生, 高橋歩夢, 神原正, 吉田敦, 岡安悟, 一瀬中, 為ヶ井強
    • Organizer
      日本物理学会第80回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] KCa2Fe4As4F2の臨界電流密度に対する重イオン照射効果2020

    • Author(s)
      為ヶ井強, 卞舜生, 小林優斗, T. Wang, G. Mu, 吉田敦, 神原正, 岡安悟, 一瀬中
    • Organizer
      日本物理学会第81回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Ba1-xKxFe2As2超伝導体丸線およびテープ線材における結晶粒の高配向化2020

    • Author(s)
      卞舜生, 宮脇大輔, 為ヶ井強, 梶谷秀樹, 小泉徳潔, 鬼頭聖, 淡路智
    • Organizer
      日本物理学会第82回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 122型鉄系超伝導体に対するマルチモードスプレイド柱状欠陥の効果2020

    • Author(s)
      高橋歩夢, 卞舜生, 神原正, 吉田敦, 一瀬中, 為ヶ井強
    • Organizer
      日本物理学会第83回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 配向性向上による(Ba,Na)Fe2As2線材の臨界電流密度の向上2020

    • Author(s)
      宮脇大輔, 卞舜生, 為ヶ井強, 淡路智, 梶谷秀樹, 小泉徳潔, 鬼頭聖
    • Organizer
      日本物理学会第84回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] NbSe2における重イオン照射効果2019

    • Author(s)
      為ヶ井 強, 李 文杰, 卞 舜生, 岡安 悟, 一瀬 中
    • Organizer
      渦のコスモロジー研究会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Peak Effects in Heavy-ion Irradiated NbSe22019

    • Author(s)
      T. Tamegai, W. J. Li, S. Pyon, S. Okayasu, A. Ichinose
    • Organizer
      XVII International Workshop on Vortex Matter in Superconductors
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Nature of the zero-energy vortex bound state in the superconducting topological surface state of Fe(Se,Te)2019

    • Author(s)
      T. Machida, Y. Sun., S. Pyon. S. Takeda, Y. Kohsaka, T. Hanaguri, T. Sasagawa, T. Tamegai
    • Organizer
      XVII International Workshop on Vortex Matter in Superconductors
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Nature of zero-energy vortex bound state in superconducting topological surface state of Fe(Se, Te)2019

    • Author(s)
      T. Machida, Y. Sun., S. Pyon. S. Takeda, Y. Kohsaka, T. Hanaguri, T. Sasagawa, T. Tamegai
    • Organizer
      Specrtroscopies in Novel Superconductors 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Zero-energy vortex bound states in the topological superconductor Fe(Se,Te)2019

    • Author(s)
      T. Machida, Y. Sun., S. Pyon. S. Takeda, Y. Kohsaka, T. Hanaguri, T. Sasagawa, T. Tamegai
    • Organizer
      CEMS Symposium on Emergent Quantum Materials
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 積層コーテッド・コンダクターによる強磁場捕捉2019

    • Author(s)
      為ヶ井強
    • Organizer
      応用物理学会 超伝EUCAS2019導分科会 第59回研究会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Developments of Iron-based Superconducting Wires2019

    • Author(s)
      T. Tamegai, D. Miyawaki, T. Suwa, S. Pyon, K. Takano, H. Kajitani, N. Koizumi, S. Awaji
    • Organizer
      Japan-Korea International Symposium on Materials Science and Technology 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Large Critical Current Density in (Ba,Na)Fe2As2 Round Wire Processed Under High Pressure2019

    • Author(s)
      T. Tamegai, D. Miyawaki, T. Suwa, S. Pyon, K. Takano, H. Kajitani, N. Koizumi, and S. Awaji
    • Organizer
      EUCAS2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Numerical investigation of critical states in superposed superconducting films2019

    • Author(s)
      L. Burger, I. S. Veshchunov, T. Tamegai, A. V. Silhanek, S. Nagasawa, M. Hidaka, B. Vanderheyden
    • Organizer
      EUCAS2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Comprehensive analysis of the microwave-frequency electromagnetic properties of BaFe2As2 single crystals with K, Co, Rh, and P substitutions2019

    • Author(s)
      G. Ghigo, D. Torsello, G. A. Ummarino, L. Gozzelino, R. Gerbaldo, F. Laviano, T. Tamegai, M. A. Tanatar, R. Prozorov, P. C. Canfield
    • Organizer
      EUCAS2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Peak Effect in 2H-NbSe2 single crystals with columnar defects2019

    • Author(s)
      李文杰, 為ヶ井強, 卞舜生, 高橋歩夢, 宮脇大輔, 岡安悟, 一瀬中
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] (Ba,Na)Fe2As2HIP丸型線材およびテープ線材の作製と臨界電流密度の向上2019

    • Author(s)
      宮脇大輔, 卞舜生, 為ヶ井強, 淡路智, 梶谷秀樹, 小泉徳潔, 鬼頭聖
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 1144型鉄系超伝導体CaKFe4As4におけるCo置換によるピン止め中心導入による臨界電流密度の向上2019

    • Author(s)
      小林優斗, 卞舜生, 高橋歩夢, 一瀬中, 為ヶ井強
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 1144型鉄系超伝導体に対するスプレイド柱状欠陥の効果2019

    • Author(s)
      高橋歩夢, 卞舜生, 小林優斗, 神原正, 吉田敦, 岡安悟, 一瀬中, 為ヶ井強
    • Organizer
      日本物理学会2022年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] KCa2Fe4As4F2における臨界電流密度とその粒子線照射による増大2019

    • Author(s)
      為ヶ井強, 卞舜生, 小林優斗, Teng Wang, Gang Mu, 岡安悟, 一瀬中
    • Organizer
      日本物理学会2023年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] KCa2Fe4As4F2超伝導体線材の作製と臨界電流密度の評価2019

    • Author(s)
      卞舜生, 宮脇大輔, 為ヶ井強, 梶谷秀樹, 小泉徳潔, 鬼頭聖, 淡路智
    • Organizer
      日本物理学会2024年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Fe(Te,Se)単結晶微小ブリッジに対する電気化学的過剰鉄制御と対破壊電流密度測定2019

    • Author(s)
      峯直輝, 大沼遥, 孫悦, 堀川舜平, 野地尚, 小池洋二, 為ヶ井強, 北野晴久
    • Organizer
      日本物理学会2025年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Fe(Te,Se)単結晶微小ブリッジを用いた面間ジョセフソン接合素子の作製2019

    • Author(s)
      宮沢貴麿, 堀川舜平, 為ヶ井強, 孫悦, 北野晴久
    • Organizer
      日本物理学会2026年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Revisiting the annealing effect of Fe1+yTe1-xSex single crystals2019

    • Author(s)
      Y. Sun, S. Horikawa, H. Kitano, T. Tamegai
    • Organizer
      日本物理学会2027年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] トポロジカル超伝導体Fe(Se,Te)におけるゼロエネルギー渦糸芯束縛状態への渦糸間相互作用による影響2019

    • Author(s)
      町田理, 孫悦, 卞舜生, 竹田駿, Ching-Kai Chiu, 幸坂祐生, 花栗哲郎, 笹川崇男, 為ヶ井強
    • Organizer
      日本物理学会2028年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Interlayer Charge Dynamics of High-Quality Fe(Te,Se) Single Crystals in the Normal and Superconducting States2019

    • Author(s)
      Y. Sun , N. Mine , T. Miyazawa , H. Ohnuma , T. Noji , Y. Koike , T. Tamegai , H. Kitano
    • Organizer
      International Conference on Strongly Correlated Electron Systems 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Critical Current Density and Its Enhancement by Particle Irradiation in KCa2Fe4As4F22019

    • Author(s)
      T. Tamegai , S. Pyon , Y. Kobayashi , T. Wang, G. Mu, S. Okayasu , A. Ichinose
    • Organizer
      International Symposium on Superconductivity 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication and Characterizations of KCa2Fe4As4F2 Superconducting HIP Wires2019

    • Author(s)
      S. Pyon , D. Miyawaki , T. Tamegai , H. Kajitani , N. Koizumi, S. Awaji , H. Kito
    • Organizer
      International Symposium on Superconductivity 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of 800 MeV Xe Irradiation on 2H-NbSe2 Single Crystals2019

    • Author(s)
      W. Li, T. Tamegai, S. Pyon, A. Takahashi, D. Miyawaki, A. Ichinose
    • Organizer
      International Symposium on Superconductivity 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of (Ba,Na)Fe2As2 round wires and tapes using HIP process2019

    • Author(s)
      D. Miyawaki, S. Pyon, S. Awaji, H. Kajitani, N. Koizumi, H. Kito, T. Tamegai
    • Organizer
      International Symposium on Superconductivity 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of Splayed Columnar Defects on Critical Current Density in CaKFe4As42019

    • Author(s)
      A. Takahashi, S. Pyon, Y. Kobayashi, T. Kambara, A. Yoshida, S. Okayasu, A. Ichinose, T. Tamegai
    • Organizer
      International Symposium on Superconductivity 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of Point Defects Introduced by Co-dope and Proton Irradiation in CaKFe4As42019

    • Author(s)
      Y. Kobayashi, S. Pyon, A. Takahashi, T. Tamegai
    • Organizer
      International Symposium on Superconductivity 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Zero-Energy Vortex Bound State in the Topological Superconductor Fe(Se,Te)2019

    • Author(s)
      T. Machida, Y. Sun., S. Pyon. S. Takeda, C. K. Chiu, Y. Kohsaka, T. Hanaguri, T. Sasagawa, T. Tamegai
    • Organizer
      International Symposium on Superconductivity 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Probing the superconducting gap structure of iron-based superconductors by angle-resolved specific heat measurements2019

    • Author(s)
      Y. Sun, S. Kittaka, T. Sakakibara, K. Machida, T. Tamegai
    • Organizer
      International Symposium on Superconductivity 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Zero-energy bound states in the vortex core and at excess irons in Fe(Se,Te)2019

    • Author(s)
      T. Machida, Y. Sun., S. Pyon. S. Takeda, Y. Kohsaka, T. Hanaguri, T. Sasagawa, T. Tamegai
    • Organizer
      International Conference on Topological Materials Science 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Nature of zero-energy vortex bound state in superconducting topological surface state of Fe(Se,Te)2019

    • Author(s)
      T. Machida, Y. Sun., S. Pyon. S. Takeda, Y. Kohsaka, T. Hanaguri, T. Sasagawa, T. Tamegai
    • Organizer
      Materials Research Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 鉄系超伝導体の臨界電流密度に対する柱状欠陥の効果2019

    • Author(s)
      為ヶ井強, 高橋歩夢, 小林優斗, 卞 舜生, 吉田 敦, 神原 正, 一瀬 中
    • Organizer
      第27回渦糸物理ワークショップ
    • Related Report
      2019 Annual Research Report
  • [Presentation] 12442 型鉄系超伝導体を用いた多結晶の熱処理純良化と 線材の臨界電流密度向上2019

    • Author(s)
      卞舜生, 宮脇大輔, 為ヶ井強, 梶谷秀樹, 小泉徳潔, 鬼頭聖, 淡路智
    • Organizer
      第27回渦糸物理ワークショップ
    • Related Report
      2019 Annual Research Report
  • [Presentation] Peak Effect in 2H-NbSe2 Single Crystals with Point Defects2019

    • Author(s)
      W. J. Li, T. Tamegai, S. Pyon, A. Takahashi, D. Miyawaki, Y. Kobayashi
    • Organizer
      第27回渦糸物理ワークショップ
    • Related Report
      2019 Annual Research Report
  • [Presentation] CaKFe4As4における 異方的臨界電流密度2019

    • Author(s)
      為ヶ井 強、卞 舜生、高橋歩夢、小林優斗、岡安 悟、一瀬 中
    • Organizer
      つくば-柏-本郷 超伝導かけはしプロジェクト ワークショップ
    • Related Report
      2018 Annual Research Report
  • [Presentation] Enhancement of Critical Current Density at Some Fraction of BΦ in Superconductors with Splayed Columnar Defects2019

    • Author(s)
      T. Tamegai, Wenjie Li, A. Takahashi, S. Pyon, S. Okayasu, A. Ichinose
    • Organizer
      Plasma 2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Enhancement of Jc at around 1/3BΦ in Iron-based Superconductors with Splayed Columnar Defects2019

    • Author(s)
      T. Tamegai, A. Takahashi, N. Ito, S. Pyon, A. Yoshida, T. Kambara, S. Okayasu, A. Ichinose
    • Organizer
      APS March Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fragile zero-energy vortex bound state in the topological superconductor candidate FeTe0.6Se0.42019

    • Author(s)
      T. Machida, Y. Sun, S. Pyon, S. Takeda, Y. Kohsaka, T. Hanaguri, T. Sasagawa, T. Tamegai
    • Organizer
      APS March Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Superconducting and normal state anisotropy of Fe(Te,Se) single crystals2019

    • Author(s)
      Y. Sun, H. Ohnuma, N. Mine, H. Kitano, and T. Tamegai
    • Organizer
      日本物理学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Anisotropic critical current density in NbSe2 with splayed columnar defects2019

    • Author(s)
      W. Li, T. Tamegai, S. Pyon, I. Veshchunov, A. Takahashi, D. Miyawaki, and S. Okayasu
    • Organizer
      日本物理学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Fe(Se,Te)単結晶の面内微小接合素子の作製と電気化学的キャリア制御2019

    • Author(s)
      大沼遥, 岡田一宏, 高木友宏, 野地尚, 小池洋二, 鮎川晋也, 為ヶ井強, 孫悦, 北野晴久
    • Organizer
      日本物理学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Ba1-xNaxFe2As2丸型HIP線゛の作製条件の最適化と性能の向上2019

    • Author(s)
      宮脇大輔, 卞舜生, 為ヶ井強, 淡路智
    • Organizer
      日本物理学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 122型鉄系超伝導体に対するc軸非対称なスプレイド柱状欠陥の効果2019

    • Author(s)
      高橋歩夢, 卞舜生, 神原正A, 吉田敦A, 岡安悟B, 為ヶ井強
    • Organizer
      日本物理学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] CaKFe4As4多結晶の熱処理純良化と超伝導線材の臨界電流密度向上2019

    • Author(s)
      卞舜生, 宮脇大輔, 為ヶ井強, 淡路智
    • Organizer
      日本物理学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] In-plane Anisotropy of Critical Current Density in Superconductors with Splayed Columnar Defects2018

    • Author(s)
      T. Tamegai, A. Park, N. Ito, A. Takahashi, S. Pyon, T. Nishizaiki, T. Kambara, A. Yoshida, S. Okayasu, A. Ichinose
    • Organizer
      ICSM2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Anomalous Enhancement of Critical Current Density in Iron-based Superconductors with Splayed Columnar Defects2018

    • Author(s)
      T. Tamegai, A. Park, N. Ito, A. Yamaoka, S. Pyon, T. Kambara, A. Yoshida, S. Okayasu, A. Ichinose
    • Organizer
      8th International Conference -Science and Engineering of Novel Superconductors
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 新規超伝導マグネットの開発と 強磁場発生2018

    • Author(s)
      為ヶ井強
    • Organizer
      超伝導とその周辺:渦糸物理と検出器の新展開
    • Related Report
      2018 Annual Research Report
  • [Presentation] Anomalous Enhancement of Critical Current Density due to Novel Planar Defects in CaKFe4As42018

    • Author(s)
      T. Tamegai, A. Takahashi, S. Pyon, N. Ito, S. Ishida, A. Iyo, H. Eisaki, M. Imai, H. Abe, T. Terashima, S. Ooi, A. Ichinose
    • Organizer
      M2S2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of Ion-irradiation on critical current density in CaKFe4As4 single crystals2018

    • Author(s)
      S. Pyon, A. Tahakashi, I. Veshchunov, N. Ito, T. Tamegai, S. Ishida, A. Iyo, H. Eisaki, M. Imai, H. Abe, T. Terashima
    • Organizer
      M2S2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Comparison of 1.19 GeV Pb and 320 MeV Au Irradiation Effects on Critical Current Density in Ba0.6K0.4 Fe2As22018

    • Author(s)
      A. Takahashi, S. Pyon, S. Okayasu, G. Ghigo, D. Torsello, R. Gerbaldo, T. Tamegai
    • Organizer
      M2S2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ultra-Low Temperature Spectroscopic Imaging Studies of Vortices in the Topological Superconductor FeTe0.6Se0.42018

    • Author(s)
      T. Machida, Y. Sun, S. Takeda, Y. Kohsaka, T. Hanaguri, T. Sasagawa, T. Tamegai
    • Organizer
      M2S2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Developments of Round Wires of Iron-based Superconductors2018

    • Author(s)
      T. Tamegai, S. Pyon, T. Suwa, D. Miyawaki, H. Kajitani, N. Koizumi, S. Awaji
    • Organizer
      International Workshop on Superconducting Materials for Applications
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] トポロジカル超伝導体候補物質FeTe0.6Se0.4における渦糸芯電子状態の走査型トンネル分光2018

    • Author(s)
      町田理, 孫悦, 竹田駿, 幸坂祐生, 花栗哲郎, 笹川崇男, 為ヶ井強
    • Organizer
      日本物理学会秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 122型鉄系超伝導体の臨界電流密度に対する1.19 GeV Pb照射効果2018

    • Author(s)
      高橋歩夢, 卞舜生, G. Ghigo, D. Torsello, R. Gerbaldo, 為ヶ井強
    • Organizer
      日本物理学会秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] (Ba,Na)Fe2As2丸型HIP線材の作製と臨界電流密度の向上2018

    • Author(s)
      宮脇大輔, 為ヶ井強, 卞舜生, 淡路智
    • Organizer
      日本物理学会秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 超伝導体における量子磁束運動の抑制2018

    • Author(s)
      為ヶ井強
    • Organizer
      日本物理学会秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] CaKFe4As4超伝導体線材の作製と臨界電流密度の評価2018

    • Author(s)
      卞舜生, 宮脇大輔, 為ヶ井強, 淡路智
    • Organizer
      日本物理学会秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Quasi-particle evidence for the nematic state above superconductivity in Sr0.1Bi2Se32018

    • Author(s)
      Yue Sun, S. Kittaka, T. Sakakibara, K. Machida, T. Tamegai, J. Wang, J. Wen
    • Organizer
      日本物理学会秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Demonstration of Excellent Jc Characteristics in (AE,Na)Fe2As2 (AE: Sr, Ba) PIT Wires2018

    • Author(s)
      T. Tamegai, T. Suwa, D. Miyawaki, S. Pyon, K. Takano, H. Kajitani, N. Koizumi, S. Awaji
    • Organizer
      Applied Superconductivity Conference 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] スプレー柱状欠陥を導入した NbSe2における磁束状態2018

    • Author(s)
      T. Tamegai, Wenjie Li, S. Pyon, S. Okayasu, A. Ichinose
    • Organizer
      第26回渦糸物理国内会議
    • Related Report
      2018 Annual Research Report
  • [Presentation] 超伝導線材の臨界電流密度2018

    • Author(s)
      卞 舜生
    • Organizer
      第26回渦糸物理国内会議
    • Related Report
      2018 Annual Research Report
  • [Presentation] Evaluation of Anisotropic Critical Current Density in CaKFe4As42018

    • Author(s)
      T. Tamegai, A. Tahakashi, S. Pyon, I. Veshchunov, S. Ishida, A. Iyo, H. Eisaki, M. Imai, H. Abe, T. Terashima, S. Ooi, and A. Ichinose
    • Organizer
      ISS2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Recent Progress of Iron Based Superconducting Round Wires2018

    • Author(s)
      Sunseng Pyon, Tsuyoshi Tamegai, Katsutoshi Takano, Hideki Kajitani, Norikiyo Koizumi, Satoshi Awaji
    • Organizer
      ISS2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Effects of Swift-Particle Irradiations on Critical Current Density in CaKFe4As42018

    • Author(s)
      A. Takahashi, S. Pyon, S. Okayasu, S. Ishida, A. Iyo, H. Eisaki, M. Imai, H. Abe, T. Terashima T. Tamegai
    • Organizer
      ISS2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of (Ba,Na)Fe2As2 round wires using HIP process2018

    • Author(s)
      D. Miyawaki, S. Pyon, T. Tamegai, S. Awaji, K. Takano, H. Kajitani, and N. Koizumi
    • Organizer
      ISS2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] (Ba,K)Fe2As2 とCaKFe4As4 における臨界電流特性の比較2018

    • Author(s)
      為ヶ井強、卞 舜生、伊藤 望、高橋歩夢、石田茂之、永崎 洋、伊豫 彰、今井基晴、阿部英樹、寺嶋太一、岡安 悟、一瀬 中
    • Organizer
      新規超伝導体・ナノ構造超伝導体における渦糸物理
    • Related Report
      2017 Annual Research Report
  • [Presentation] 122 型超伝導HIP 線材における臨界電流密度の焼成圧力および加工法依存性2018

    • Author(s)
      卞舜生, 諏訪貴洋, 為ヶ井強, 梶谷秀樹, 小泉徳潔
    • Organizer
      新規超伝導体・ナノ構造超伝導体における渦糸物理
    • Related Report
      2017 Annual Research Report
  • [Presentation] Effects of Swift-Particle Irradiation on CaKFe4As4 Single Crystals2018

    • Author(s)
      Tsuyoshi Tamegai, Sunseng Pyon, Nozomu Ito, Ayumu Takahashi, Shigeyuki Ishida, Hiroshi Eisaki, Akira Iyo, Motoharu Imai, Hideki Abe, Taichi Terashima
    • Organizer
      APS March Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] CaKFe4As4における臨界電流密度に対する粒子線照射効果2018

    • Author(s)
      為ヶ井強, 卞舜生, 伊藤望, 高橋歩夢, 石田茂之, 永崎洋, 伊豫彰, 今井基晴, 阿部英樹, 寺嶋太一
    • Organizer
      日本物理学会年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] スプレイド柱状欠陥を導入したBa1-xKxFe2As2とBa(Fe1-xCox)2As2における臨界電流密度の面内異方性2018

    • Author(s)
      伊藤望, 卞舜生, 山岡夏樹, 神原正, 岡安悟, 一瀬中, 為ヶ井強
    • Organizer
      日本物理学会年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Ba1-xKxFe2As2超伝導線材の臨界電流密度に対する焼成圧力依存性2018

    • Author(s)
      卞舜生, 諏訪貴洋, 為ヶ井強, 淡路智
    • Organizer
      日本物理学会年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] (Sr,Na)Fe2As2線材におけるNaドープ量制御による性能改善2018

    • Author(s)
      諏訪貴洋, 卞舜生, 淡路智, 為ヶ井強
    • Organizer
      日本物理学会年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] CaKFe4As4における 異方的臨界電流密度 に対する粒子線照射効果2018

    • Author(s)
      為ヶ井強、卞 舜生、伊藤 望、高橋歩夢、石田茂之、永崎 洋、伊豫 彰、今井基晴、阿部英樹、寺嶋太一、岡安 悟、一瀬 中
    • Organizer
      つくば-柏-本郷 超伝導かけはしプロジェクト ワークショップ
    • Related Report
      2017 Annual Research Report
  • [Presentation] (Ba,K)Fe2As2 超伝導線材の 臨界電流密度に対する焼成圧力依存性2018

    • Author(s)
      卞 舜生、諏訪 貴洋、為ヶ井 強、高野 克敏、梶谷 秀樹、小泉 徳潔、淡路 智
    • Organizer
      つくば-柏-本郷 超伝導かけはしプロジェクト ワークショップ
    • Related Report
      2017 Annual Research Report
  • [Presentation] Anomalous Peak Effect in (Ba,K)Fe2As2 with Splayed Columnar Defects2017

    • Author(s)
      T. Tamegai A. Park, N. Itoh, N. Yamaoka, S. Pyon, T. Kambara, S. Okayasu, A. Ichinose
    • Organizer
      16th International Workshop on Vortex Matter in Superconductors
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Present Status of PIT Round Wires of 122-type Iron-based Superconductors2017

    • Author(s)
      T. Tamegai, T. Suwa, S. Pyon, H. Kajitani, N. Koizumi, S. Awaji, K Watanabe
    • Organizer
      CES/ICMC2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Effects of Swift-Particle Irradiations on the Critical Current Density in FeSe2017

    • Author(s)
      T. Tamegai Y. Sun, A. Park, N. Ito, S. Pyon, H. Kitamura, A. Ichinose
    • Organizer
      13th European Conference on Applied Superconductivity
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ba1-xKxFe2As2 超伝導線材における臨界電流密度 のコア形状および圧力依存性2017

    • Author(s)
      卞 舜生、諏訪 貴洋、為ヶ井 強、 高野 克敏、梶谷 秀樹、小泉 徳潔、淡路 智
    • Organizer
      日本物理学会秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] スプレイド柱状欠陥を導入したBa1-xKxFe2As2とBa(Fe1-xCox)2As2の比較2017

    • Author(s)
      伊藤望, 卞舜生, 神原正, 吉田敦, 岡安悟, 一瀬中, 為ヶ井強
    • Organizer
      日本物理学会秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] (Sr,Na)Fe2As2線材におけるAgSnシースによる臨界電流密度の向上2017

    • Author(s)
      諏訪貴洋, 卞舜生, 淡路智, 為ヶ井強
    • Organizer
      日本物理学会秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Comparison of Physical Properties of FeSe with Different Tc2017

    • Author(s)
      陳靖テイ, 孫悦, 卞舜生, 為ヶ井強
    • Organizer
      日本物理学会秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Disorder-sensitive node-like small gap in FeSe2017

    • Author(s)
      Y. Sun, S. Kittaka, T. Sakakibara, J. Chen, T. Tamegai, K. Machida
    • Organizer
      日本物理学会秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Evolution of Physical Properties in FeSe Single Crystals with Different Quality2017

    • Author(s)
      T. Tamegai J. T. Chen, S. Pyon, Y. Sun
    • Organizer
      ISS2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication Process and Pressure Dependence of Critical Current Density in Ba1-xKxFe2As2 Superconducting HIP Wires2017

    • Author(s)
      *Sunseng Pyon, Takahiro Suwa, and Tsuyoshi Tamegai, Katsutoshi Takano, Hideki Kajitani, Norikiyo Koizumi, Satoshi Awaji
    • Organizer
      ISS2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Gap Structure of FeSe Determined by Field-Angle-Resolved Specific Heat Measurements2017

    • Author(s)
      Yue Sun, Shunichiro Kittaka, Shota Nakamura, Toshiro Sakakibara, Koki Irie, Takuya Nomoto, Kazushige Machida, Jingting Chen, Tsuyoshi Tamegai
    • Organizer
      ISS2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Anisotropy of Critical Current Densities in Ba1-xKxFe2As2 and Ba(Fe1-xCox)2As2 with Splayed Columnar Defects2017

    • Author(s)
      N. Ito, S. Pyon, T. Kambara, S. Okayasu, A. Ichinose, T. Tamegai
    • Organizer
      ISS2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Enhancement of critical current density in (Sr,Na)Fe2As2 superconducting wires by AgSn sheath hardening the core of the wires2017

    • Author(s)
      Takahiro Suwa, Sunseng Pyon, Tsuyoshi Tamegai, Satoshi Awaji
    • Organizer
      ISS2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2023-01-30  

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