Superconductivity in Ca-Fe-As ternary systems

• Project/Area Number: 26287082
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: Okayama University
• Principal Investigator: Nohara Minoru 岡山大学, 異分野基礎科学研究所, 教授 (70272531)
• Co-Investigator(Renkei-kenkyūsha): KUDO Kazutaka 岡山大学, 異分野基礎科学研究所, 准教授 (40361175)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000); Fiscal Year 2016: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000); Fiscal Year 2015: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000); Fiscal Year 2014: ¥11,570,000 (Direct Cost: ¥8,900,000、Indirect Cost: ¥2,670,000)
• Keywords: 鉄系超伝導体 / 物質開発 / ヒ素の化学 / 超伝導 / 鉄系超伝導

Outline of Final Research Achievements

We have investigated the 112-type CaFeAs2 and experimentally demonstrated: (1) superconducting transition temperature is increased up to 47 K by the La and Sb simultaneous doping, (2) the doped Sb does not substitute for As at superconducting FeAs layers, but for As at interlayer substances, and (3) antiferromangetic ordering appears by heavy La doping of CaFeAs2. We also have investigated the 10-4-8-type Ca10(Ir4As8)(Fe2As2)5 and demonstrated: (4) the compound experiences a structural phase transition (SPT) at approximately 100 K, (5) the SPT is suppressed under a hydrostatic pressure of 0.5 GPa, which is associated with disappearance of superconductivity, and (6) Ir 5d orbitals contribute to charge transport.

Research Products

• [Int'l Joint Research] ローマ大学(イタリア)
• [Int'l Joint Research] Universita di Roma "La Sapienza"(イタリア)
• [Int'l Joint Research] Universidad Central de Venezuela(ベネズエラ)
• [Journal Article] Site-Selective Antimony Doping in Arsenic Zigzag Chains of 112-Type Ca1－xLaxFeAs2 (2017)
  • Author(s): H. Ota, K. Kudo, T. Kimura, Y. Kitahama, T. Mizukami, S. Ioka, M. Nohara
  • Journal Title: Journal of the Physical Society of Japan Volume: 86 Issue: 2 Pages: 025002-025002
  • DOI: 10.7566/jpsj.86.025002
  • NAID: 210000134280
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Enhanced Superconductivity in Close Proximity to the Structural Phase Transition of Sr1-xBaxNi2P2 (2017)
  • Author(s): K. Kudo, Y. Kitahama, K. Iba, M. Takasuga, M. Nohara
  • Journal Title: Journal of the Physical Society of Japan Volume: 86 Issue: 3 Pages: 035001-035001
  • DOI: 10.7566/jpsj.86.035001
  • NAID: 210000134313
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Arsenic chemistry of iron-based superconductors and strategy for novel superconducting materials (2017)
  • Author(s): M. Nohara and K. Kudo
  • Journal Title: Advances in Physics: X Volume: 2 Issue: 2 Pages: 450-461
  • DOI: 10.1080/23746149.2017.1317024
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Temperature dependent local atomic displacements in ammonia intercalated iron selenide superconductor (2016)
  • Author(s): E. Paris, L. Simonelli, T. Wakita, C. Marini, J.-H. Lee, W. Olszewski, K. Terashima, T. Kakuto, N. Nishimoto, T. Kimura, K. Kudo, T. Kambe, M. Nohara, T. Yokoya, N. L. Saini
  • Journal Title: Scientific Reports Volume: 6 Issue: 1 Pages: 27646-27646
  • DOI: 10.1038/srep27646
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] 超伝導物質探索--化学の知見に基づくアプローチ -- (2016)
  • Author(s): 野原実
  • Journal Title: 固体物理 Volume: 51 Pages: 681-691
  • Peer Reviewed
• [Journal Article] Composition-induced structural instability and strong-coupling superconductivity in Au1-xPdxTe2 (2016)
  • Author(s): K. Kudo, H. Ishii, and M. Nohara
  • Journal Title: Phys. Rev. B. Volume: 93 Issue: 14
  • DOI: 10.1103/physrevb.93.140505
  • NAID: 120006380500
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Pressure dependence of the local structure of iridium ditelluride across the structural phase transition (2016)
  • Author(s): E. Paris, B. Joseph, A. Iadecola, C. Marini, H. Ishii, K. Kudo, S. Pascarelli, M. Nohara, T. Mizokawa, and N. L. Saini
  • Journal Title: Phys. Rev. B. Volume: 93 Issue: 13
  • DOI: 10.1103/physrevb.93.134109
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Enhancement of critical current density in a Ca0.85La0.15Fe(As0.92Sb0.08)2 superconductor with Tc = 47 K through 3 MeV proton irradiation (2016)
  • Author(s): A. Park, A. Mine, T. Yamada, F. Ohtake, H. Akiyama, Y. Sun, S. Pyon, T. Tamegai, Y. Kitahama, T. Mizukami, K. Kudo, M. Nohara, H. Kitamura
  • Journal Title: Superconductor Science and Technology Volume: 29 Issue: 5 Pages: 055006-055006
  • DOI: 10.1088/0953-2048/29/5/055006
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] High-resolution magnetic penetration depth and inhomogeneities in locally noncentrosymmetric SrPtAs (2016)
  • Author(s): J. F. Landaeta, S. V. Taylor, I. Bonalde, C. Rojas, Y. Nishikubo, K. Kudo, M. Nohara
  • Journal Title: Physical Review B Volume: 93 Issue: 6
  • DOI: 10.1103/physrevb.93.064504
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A new way to synthesize superconducting metal-intercalated C60 and FeSe (2016)
  • Author(s): Y. Takahei, K. Tomita, Y. Itoh, K. Ashida, J.-H. Lee, N. Nishimoto, T. Kimura, K. Kudo, Minoru Nohara, Y. Kubozono, T. Kambe
  • Journal Title: Scientific Reports Volume: 6 Issue: 1 Pages: 18931-18931
  • DOI: 10.1038/srep18931
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Doping-enhanced antiferromagnetism in Ca1-xLaxFeAs2 (2015)
  • Author(s): S. Kawasaki, T. Mabuchi, S. Maeda, T. Adachi, T. Mizukami, K. Kudo, M. Nohara, G.-q. Zheng
  • Journal Title: Physical Review B Volume: 92 Issue: 18
  • DOI: 10.1103/physrevb.92.180508
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Suppression of Nonmagnetic Insulating State by Application of Pressure in Mineral Tetrahedrite Cu12Sb4S13 (2015)
  • Author(s): S. Kitagawa, T. Sekiya, S. Araki, T. C. Kobayashi, K. Ishida, T. Kambe, T. Kimura, N. Nishimoto, K. Kudo, M. Nohara
  • Journal Title: Journal of the Physical Society of Japan Volume: 84 Issue: 9 Pages: 0939011-4
  • DOI: 10.7566/jpsj.84.093701
  • NAID: 210000133657
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Superconductivity in MgPtSi: An orthorhombic variant of MgB2 (2015)
  • Author(s): Kazutaka Kudo, Kazunori Fujimura, Seiichiro Onari, Hiromi Ota, Minoru Nohara
  • Journal Title: Physical Review B Volume: 91 Issue: 17
  • DOI: 10.1103/physrevb.91.174514
  • Peer Reviewed
• [Journal Article] Exploration of new superconductors and functional materials, and fabrication of superconducting tapes and wires of iron pnictides (2015)
  • Author(s): H. Hosono, K. Tanabe, E. Takayama-Muromachi, H. Kageyama, S. Yamanaka, H. Kumakura, M. Nohara, H. Hiramatsu, and S. Fujitsu
  • Journal Title: Science and Technology of Advanced Materials Volume: 16 Issue: 3 Pages: 033503-033503
  • DOI: 10.1088/1468-6996/16/3/033503
  • NAID: 120006323762
  • Peer Reviewed
• [Journal Article] Comparative ARPES Study on Iron-Platinum-Arsenide Superconductor Ca10(Pt4As8)(Fe2－xPtxAs2)5 (x = 0.25 and 0.42) (2015)
  • Author(s): M. Sunagawa, R. Yoshida, T. Ishiga, K. Tsubota, T. Jabuchi, J. Sonoyama, S. Kakiya, D. Mitsuoka, K. Kudo, M. Nohara, K. Ono, H. Kumigashira, T. Oguchi, T. Wakita, Y. Muraoka, T. Yokoya
  • Journal Title: Journal of the Physical Society of Japan Volume: 84 Issue: 5 Pages: 055001-055002
  • DOI: 10.7566/jpsj.84.055001
  • NAID: 210000133564
  • Peer Reviewed
• [Journal Article] Simultaneous suppression of superconductivity and structural phase transition under pressure in Ca10(Ir4As8)(Fe2-xIrxAs2)5 (2014)
  • Author(s): S. Kitagawa, S. Araki, T. C. Kobayashi, H. Ishii, K. Fujimura, D. Mitsuoka, K. Kudo, and M. Nohara
  • Journal Title: Physical Review B Volume: 90 Issue: 22
  • DOI: 10.1103/physrevb.90.224513
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Effectof Pt Substitution on the Electronic Structure of AuTe2 (2014)
  • Author(s): D. Ootsuki,K. Takubo,K. Kudo,H. Ishii, M. Nohara,N. L. Saini, R. Autarto, F. He, T. Z. Regier, G. Levy, G. A. Sawatzky, A. Damascelli, T. Mizokawa
  • Journal Title: Physical Review B Volume: 90 Issue: 14 Pages: 144515-144515
  • DOI: 10.1103/physrevb.90.144515
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Synchrotron X-ray diffraction study of the Structural Phase Transition in Ca10(Ir4As8)(Fe2-xIrxAs2)5 (2014)
  • Author(s): N. Katayama, K. Sugawara, Y. Sugiyama, T. Higuchi, K. Kudo, D. Mitsuoka, T. Mizokawa, M. Nohara, and Hiroshi Sawa
  • Journal Title: J. Phys. Soc. Jpn. Volume: 83 Issue: 11 Pages: 1-5
  • DOI: 10.7566/jpsj.83.113707
  • NAID: 210000133325
  • Peer Reviewed
• [Journal Article] Excitonic Bose-Einstein condensation in Ta2NiSe5 above room temperature (2014)
  • Author(s): K. Seki, Y. Wakisaka, T. Kaneko, T. Toriyama, T. Konishi, T. Sudayama, N. L. Saini, M. Arita, H. Namatame, M. Taniguchi, N. Katayama, M. Nohara, H. Takagi, T. Mizokawa, and Y. Ohta
  • Journal Title: Physical Review B Volume: 90 Issue: 15 Pages: 155116-155116
  • DOI: 10.1103/physrevb.90.155116
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Determination of temperature-dependent atomic displacements in the Ca10Ir4As8(Fe2As2)5 (2014)
  • Author(s): E. Paris, B. Joseph, A. Iadecola, C. Marini, K. Kudo, D. Mitsuoka, M. Nohara, T. Mizokawa, and N. L. Saini
  • Journal Title: Physical Review B Volume: 90 Issue: 9 Pages: 094508-094508
  • DOI: 10.1103/physrevb.90.094508
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Temperature dependent nanoscale atomic correlations in Ir1-xPtxTe2 (x = 0.0, 0.03 and 0.04) system (2014)
  • Author(s): B. Joseph, E. Paris, D. F. Mulato-Gomez, L. Simonelli, M. Bendele, L. Maugeri, A. Iadecola, S. Pyon, K. Kudo, M. Nohara, J. Mustre de Leon, T. Mizokawa, and N. L. Saini
  • Journal Title: Journal of Physics: Condensed Matter Volume: 26 Issue: 37 Pages: 375702-375702
  • DOI: 10.1088/0953-8984/26/37/375702
  • Peer Reviewed
• [Journal Article] Superconductivity in Noncentrosymmetric Iridium Silicide Li2IrSi3 (2014)
  • Author(s): S. Pyon, K. Kudo, J. Matsumura, H. Ishii, G. Matsuo, M. Nohara, H. Hojo, K. Oka, M. Azuma, V. Ovidiu Garlea, K. Kodama, and S. Shamoto
  • Journal Title: Journal of the Physical Society of Japan Volume: 83 Issue: 9 Pages: 093706-093706
  • DOI: 10.7566/jpsj.83.093706
  • NAID: 210000133244
  • Peer Reviewed
• [Journal Article] Superconducting Transition Temperatures of up to 47 K from Simultaneous Rare-Earth Element and Antimony Doping of 112-Type CaFeAs2 (2014)
  • Author(s): K. Kudo, Y. Kitahama, K. Fujimura, T. Mizukami, H. Ota, and M. Nohara
  • Journal Title: Journal of the Physical Society of Japan Volume: 83 Issue: 9 Pages: 093705-093705
  • DOI: 10.7566/jpsj.83.093705
  • NAID: 210000133243
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Bond-Order and the Role of Ligand States in Stripe-Modulated IrTe2 (2014)
  • Author(s): K. Takubo, R. Comin, D. Ootsuki,T. Mizokawa, H. Wadati, Y. Takahashi, G. Shibata, A. Fujimori, R. Sutarto, F. He, S. Pyon, K. Kudo, M. Nohara, G. Levy, I. Elfmov, G. A. Sawatzky, A. Damascelli
  • Journal Title: Physical Review B Volume: 90 Issue: 8 Pages: 081104-081104
  • DOI: 10.1103/physrevb.90.081104
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Coexistence of Bloch Electrons and Glassy Electrons in Ca10(Ir4As8)(Fe2-xIrxAs2)5revealedby angle-resolved Photoemission Spectroscopy (2014)
  • Author(s): K. Sawada, D. Ootsuki,K. Kudo, D. Mitsuoka, M. Nohara, T. Noda, K. Horiba, M. Kobayashi, K. Ono, H. Kumigashira, N. L. Saini, T. Mizokawa
  • Journal Title: Physical Review B Volume: 89 Issue: 22 Pages: 220508-220508
  • DOI: 10.1103/physrevb.89.220508
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] Strategy for new superconductors (2017)
  • Author(s): M. Nohara
  • Organizer: Common Threads in the Electronic Phase Diagram of Unconventional Superconductors, Lorentz Center
  • Place of Presentation: Leiden University, The Netherlands
  • Year and Date: 2017-02-27
  • Int'l Joint Research / Invited
• [Presentation] 岡山大学における新超電導体の開発 (2017)
  • Author(s): 野原実
  • Organizer: 低温工学・超電導学会関西支部講演会
  • Place of Presentation: 大阪市立大学文化交流センター
  • Invited
• [Presentation] Superconductivity induced by dimer breaking of IrTe2 and AuTe2 (2016)
  • Author(s): M. Nohara
  • Organizer: 14th Bilateral Japanese-German Symposium
  • Place of Presentation: Sapporo, Japan
  • Year and Date: 2016-09-26
  • Int'l Joint Research
• [Presentation] Enhancement of superconductivity by La and Sb simultaneous doping of 112-type iron pnictide CaFeAs2 (2016)
  • Author(s): M. Nohara
  • Organizer: European Materials Research Society 2016 Fall Meeting
  • Place of Presentation: Warsaw University of Technology, Warsaw, Poland
  • Year and Date: 2016-09-19
  • Int'l Joint Research / Invited
• [Presentation] 化学結合の切断によって発現するIrTe2とAuTe2の超伝導（企画講演） (2016)
  • Author(s): 野原実
  • Organizer: 日本物理学会2016年秋季大会
  • Place of Presentation: 金沢大学角間キャンパス
  • Year and Date: 2016-09-13
  • Invited
• [Presentation] 鉄系超伝導体の開発－化学の知見に基づくアプローチ－ (2016)
  • Author(s): 野原実
  • Organizer: 豊田理研ワークショップ「高温超伝導をめぐる最近の発展と展望」
  • Place of Presentation: トヨタ産業技術記念館、名古屋市
  • Year and Date: 2016-07-30
• [Presentation] BaPtAsにおける多形制御と超伝導 (2016)
  • Author(s): 竹内貴亮、工藤一貴、藤村一徳、太田弘道、野原実
  • Organizer: 日本物理学会第71回年次大会（2016年）
  • Place of Presentation: 東北学院大学（泉キャンパス）
  • Year and Date: 2016-03-19
• [Presentation] ヒ化物系層間物質をもつ鉄系超伝導体のSbドープによるTc上昇 (2016)
  • Author(s): 木村拓海、工藤一貴、北濱裕、水上輔、藤村一徳、井岡賢志、西本直生、太田弘道、 野原実
  • Organizer: 日本物理学会第71回年次大会（2016年）
  • Place of Presentation: 東北学院大学（泉キャンパス）
  • Year and Date: 2016-03-19
• [Presentation] Arsenic chemistry and superconductivity (2016)
  • Author(s): M. Nohara
  • Organizer: Anomalous Transport in Multipolar and Topological Materials Workshop
  • Place of Presentation: Johns Hopkins University, Baltimore, MD, USA
  • Year and Date: 2016-03-11
  • Int'l Joint Research
• [Presentation] ヒ素の化学を利用した超伝導物質開発 (2016)
  • Author(s): 野原実
  • Organizer: 物性研短期研究会「SPring-8 BL07LSUの現状ーX線分光と回折の協奏へー」
  • Place of Presentation: 東京大学物性研究所
  • Year and Date: 2016-03-01
  • Invited
• [Presentation] Exploration of novel superconductors using arsenic chemistry (2016)
  • Author(s): M. Nohara
  • Organizer: The kick-off meeting of the JSPS project "Development of international research network aiming for the realization of superconductive materials with high critical temperature"
  • Place of Presentation: Okayama University, Okayama, Japan
  • Year and Date: 2016-02-29
  • Int'l Joint Research
• [Presentation] Exploration of novel pnictides and their superconducting properties (2016)
  • Author(s): M. Nohara
  • Organizer: Asia-Pacific Workshop (APW)-CEMS Joint Workshop, "Highlight of modern condensed matter physics"
  • Place of Presentation: RIKEN, Japan
  • Year and Date: 2016-01-25
  • Int'l Joint Research
• [Presentation] 室温超伝導の物理 --- 今後５年で真に取り組むべき課題は何か (2016)
  • Author(s): 野原実
  • Organizer: 第9回凝縮系理論勉強会
  • Place of Presentation: 東京理科大学神楽坂キャンパス
• [Presentation] Enhancement of superconducivity by La and Sb double doping of 112-type iron pnictide CaFeAs2 (2015)
  • Author(s): M. Nohara, Y. Kitahama, K. Fujimura, T. Mizukami, and K. Kudo
  • Organizer: The International Chemical Congres of Pacific Basin Societies
  • Place of Presentation: Honolulu, Hawaii, USA
  • Year and Date: 2015-12-15
  • Int'l Joint Research
• [Presentation] 化学を活用した量子物質開発 (2015)
  • Author(s): 野原実
  • Organizer: 物性研究所短期研究会「量子物質研究の最前線」
  • Place of Presentation: 東京大学物性研究所
  • Year and Date: 2015-12-08
  • Invited
• [Presentation] ヒ素の化学を活用した鉄系超伝導物質の開発 (2015)
  • Author(s): 野原実
  • Organizer: 物性研究所短期研究会「低次元電子系におけるエキシトニック相の新展開」
  • Place of Presentation: 東京大学物性研究所
  • Year and Date: 2015-11-26
  • Invited
• [Presentation] 強相関多極子を利用した超伝導物質の開発 (2015)
  • Author(s): 野原実
  • Organizer: 第9回物性科学領域横断研究会ー凝縮系科学の最前線
  • Place of Presentation: 東京大学
  • Year and Date: 2015-11-13
• [Presentation] 空間反転対称性の破れたハニカム格子超伝導体BaPt(As1-xSbx) (2015)
  • Author(s): 竹内貴亮、工藤一貴、藤村一徳、水上輔、太田弘道、野原実
  • Organizer: 日本物理学会2015年秋季大会
  • Place of Presentation: 関西大学
  • Year and Date: 2015-09-16
• [Presentation] ThCr2Si2型BaPd2As2の超伝導 (2015)
  • Author(s): 山田芳明、工藤一貴、松尾元太、北濱裕、野原実
  • Organizer: 日本物理学会2015年秋季大会
  • Place of Presentation: 関西大学
  • Year and Date: 2015-09-16
• [Presentation] Enhancement of superconductivity by rare-earth elements and antimony double doping of 112-type CaFeAs2 (2015)
  • Author(s): M. Nohara
  • Organizer: The 11th International Conference on Materials & Mechanisms of Superconductivity, M2S 2015
  • Place of Presentation: Geneva, Switzerland
  • Year and Date: 2015-08-23
  • Int'l Joint Research / Invited
• [Presentation] Superconductivity in the 112-type iron pnictides (2015)
  • Author(s): M. Nohara
  • Organizer: EMN (Energy Materials and Nanotechnology) Qingdao Meeting
  • Place of Presentation: Qingdao, China
  • Year and Date: 2015-06-14
  • Int'l Joint Research / Invited
• [Presentation] Material design of iron-based superconductors using arsenic chemistry (2015)
  • Author(s): M. Nohara
  • Organizer: SMEC2015 (Strudy of Matter at Extreme Conditions)
  • Place of Presentation: Miami, USA
  • Year and Date: 2015-03-08 – 2015-03-15
  • Invited
• [Presentation] ヒ素の化学を利用した高温超伝導物質の開発 (2015)
  • Author(s): 野原実
  • Organizer: 24th CEMS Colloquium, 理化学研究所創発物性科学研究センター
  • Place of Presentation: 理化学研究所、埼玉
  • Year and Date: 2015-01-28
  • Invited
• [Presentation] Development of high-Tc superconductivity using arsenic chemistry (2014)
  • Author(s): M. Nohara
  • Organizer: Ushimado International Workshop on Physics and Chemistry of Novel Superconductors and Related Materials
  • Place of Presentation: Okayama, Japan
  • Year and Date: 2014-11-08 – 2014-11-10
• [Presentation] 新しい層状物質超伝導体開発の現状と展望 (2014)
  • Author(s): 野原実
  • Organizer: 日本物理学会2014年秋期大会、JPSJフレンドシップミーティング
  • Place of Presentation: 中部大学、名古屋
  • Year and Date: 2014-09-07 – 2014-09-10
  • Invited
• [Presentation] Material design of iron-based superconductors using chemistry of arsenic (2014)
  • Author(s): M. Nohara
  • Organizer: 13th Bilateral German-Japanese Symposium "Interplay of Spin- and Orbital Degrees of Freedom in Strongly Correlated Electron Systems"
  • Place of Presentation: Ringberg Castle, Germany
  • Year and Date: 2014-07-13 – 2014-07-16
  • Invited
• [Presentation] Enhancing high-temperature power factor of PtAs2 by chemical doping (2014)
  • Author(s): M. Nohara
  • Organizer: International Conference on Thermoelectrics -- ITC2014
  • Place of Presentation: Nashville, Tennessee, USA
  • Year and Date: 2014-07-06 – 2014-07-10
  • Invited
• [Presentation] Design of Iron-based Superconductors using the Arsenic Bond Making and Breaking (2014)
  • Author(s): M. Nohara
  • Organizer: EMN (Energy Materials Nanotechnology) Summer Meeting
  • Place of Presentation: Cancun, Mexico
  • Year and Date: 2014-06-09 – 2014-06-12
  • Invited
• [Presentation] Material design of iron-based superconductors using arsenic chemistry (2014)
  • Author(s): M. Nohara
  • Organizer: International Workshop of Computational Nano-Materials Design on Green Energy
  • Place of Presentation: Osaka University, Osaka, Japan
  • Year and Date: 2014-06-01 – 2014-06-03
  • Invited
• [Presentation] Development of high-Tc superconductivity using the chemistry of arsenic (2014)
  • Author(s): M. Nohara
  • Organizer: OIST International Workshop on Novel Quantum Materials and Phases
  • Place of Presentation: Okinawa, Japan
  • Year and Date: 2014-05-14 – 2014-05-17
  • Invited
• [Presentation] Superconductivity in Doped CaFeAs2 (112) and CaFe2As2 (122) (2014)
  • Author(s): M. Nohara
  • Organizer: 2014 MRS Spring Meeting
  • Place of Presentation: San Francisco, CA, USA
  • Year and Date: 2014-04-21 – 2014-04-25
  • Invited