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Real-space observation of vortices and proximity effects on nano-size superconductors

Research Project

Project/Area Number 21360018
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Thin film/Surface and interfacial physical properties
Research InstitutionThe University of Tokyo

Principal Investigator

HASEGAWA Yukio  東京大学, 物性研究所, 准教授 (80252493)

Co-Investigator(Renkei-kenkyūsha) EGUCHI Toyoaki  慶應義塾大学, 大学院・理工学研究科, 特任准教授(兼務) (70308196)
HAMADA Masayuki  東京大学, 物性研究所, 技術専門職員 (00396920)
YOSHIDA Yasuo  東京大学, 物性研究所, 助教 (10589790)
Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
Fiscal Year 2011: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2010: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2009: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
Keywords走査トンネル顕微鏡 / 走査トンネル分光 / メゾスコピック超伝導 / 薄膜超伝導 / 量子化磁束 / 渦糸 / ナノサイズ超伝導 / 超伝導 / 近接効果
Research Abstract

Using a scanning tunneling microscopy which can be operated under ultrahigh vacuum, low-temperature(0. 4K), and high magnetic field(7 T), we have studied superconductivity of nano-size Pb superconductors, in particular, vortex formation into the tiny superconductors under magnetic fields. By controlling the size of the nano-size superconductors, we have succeeded in real-space observations of various vortex configurations unique to nano-size superconductors, such as vortex clustering and giant vortex. We also found that the tunneling current can excite a vortex into nano-size superconductors and studied its excitation mechanism.

Report

(4 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (46 results)

All 2012 2011 2010 2009 Other

All Journal Article (19 results) (of which Peer Reviewed: 6 results) Presentation (26 results) Remarks (1 results)

  • [Journal Article] Thermally assisted penetration and exclusion of single vortex in mesoscopic superconductors2012

    • Author(s)
      Shi-Zeng Lin, Takahiro Nishio, Lev N. Bulaevskii, Matthias J. Graf, and Yukio Hasegawa
    • Journal Title

      Physical Review

      Volume: B 85 Pages: 1-7

    • Related Report
      2011 Final Research Report
  • [Journal Article] 放射光励起走査トンネル顕微鏡による高分解能元素分析2012

    • Author(s)
      江口豊明・奥田太一・木下豊彦・長谷川幸雄
    • Journal Title

      顕微鏡

      Volume: vol.47 Pages: 14-17

    • NAID

      10030552165

    • Related Report
      2011 Final Research Report
  • [Journal Article] Observation of Vortex Clustering in Nano-Size Superconducting Pb Island Structures by Low-Temperature Scanning Tunneling Microscopy/Spectroscopy2012

    • Author(s)
      T. Tominaga, T. Sakamoto, T. Nishio, T. An, T. Eguchi, Y. Yoshida, Y. Hasegawa
    • Journal Title

      J. Supercond. Nov. Magn

      Volume: 25 Issue: 5 Pages: 1375-1375

    • DOI

      10.1007/s10948-012-1522-4

    • Related Report
      2011 Annual Research Report 2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] 電子定在波とフリーデル振動2012

    • Author(s)
      長谷川幸雄, 小野雅紀, 鈴木孝将, 江口豊明
    • Journal Title

      日本物理学会誌

      Volume: 第67巻第01号 Pages: 6-13

    • Related Report
      2011 Final Research Report
  • [Journal Article] 電子定在波とフリーデル振動2012

    • Author(s)
      長谷川幸雄
    • Journal Title

      日本物理学会誌

      Volume: 67 Pages: 6-13

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Comparison of force sensors for atomic force microscopy based on quartz tuning forks and length-extensional resonators2011

    • Author(s)
      Franz J. Giessibl, Florian Pielmeier, Toyoaki Eguchi, Toshu An, and Yukio Hasegawa
    • Journal Title

      Physical Review

      Volume: B 84 Pages: 1-15

    • Related Report
      2011 Final Research Report
  • [Journal Article] Metallic Transport in a Monatomic Layer of In on a Silicon Surface2011

    • Author(s)
      Shiro Yamazaki, Yoshikazu Hosomura, Iwao Matsuda, Rei Hobara, Toyoaki Eguchi, Yukio Hasegawa, and Shuji Hasegawa
    • Journal Title

      Phys. Rev. Lett

      Volume: 106 Pages: 116802-116802

    • Related Report
      2011 Final Research Report
  • [Journal Article] Comparison of force sensors for atomic force microscopy based on quartz tuning forks and length-extensional resonators2011

    • Author(s)
      Franz J.Giessibl
    • Journal Title

      Physical Review B

      Volume: 84 Issue: 12 Pages: 1254091-15

    • DOI

      10.1103/physrevb.84.125409

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Metallic Transport in a Monatomic Layer of In on a Silicon Surface2011

    • Author(s)
      Shiro Yamazaki
    • Journal Title

      Phys.Rev.Lett.

      Volume: 106 Issue: 11

    • DOI

      10.1103/physrevlett.106.116802

    • Related Report
      2011 Annual Research Report 2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Electron compoud nature in a surface atomic layer of two-dimensional hexagonal lattice2010

    • Author(s)
      Iwao Matsuda, Fumitaka Nakamura, Keisuke Kubo, Toru Hirahara, Shiro Yamazaki, Won Hoon Choi, Han Woong Yeom, Hisashi Narita, Yuki Fukaya, Mie Hashimoto, Atsuo Kawasuso, Masanori Ono, Yukio Hasegawa, Shuji Hasegawa, and Katsuyoshi Kobayashi
    • Journal Title

      Phys. Rev

      Volume: B82 Pages: 1653301-6

    • Related Report
      2011 Final Research Report
  • [Journal Article] Tip-induced excitation of a single vortex in nanosize superconductors using scanning tunneling microscopy2010

    • Author(s)
      Takahiro Nishio, Shizeng Lin, Toshu An, Toyoaki Eguchi, Yukio Hasegawa
    • Journal Title

      Nanotechnology

      Volume: 21 Pages: 4657041-6

    • Related Report
      2011 Final Research Report 2010 Annual Research Report
  • [Journal Article] Self-Assembly of TBrPP-Co Molecules on an Ag/Si(111) Surface Studied by Scanning Tunneling Microscopy2010

    • Author(s)
      Qing Li, Shiro Yamazaki, Toyoaki Eguchi, Xu-Cun Ma, Jin-Feng Jia, Qi-Kum Xue and Yukio Hasegawa
    • Journal Title

      Chinese Phys. lett

      Volume: 27 Pages: 26801-26801

    • Related Report
      2011 Final Research Report
  • [Journal Article] Ultrathin films : The thinnest superconductor(News and Views)2010

    • Author(s)
      Yukio Hasegawa
    • Journal Title

      Nature Physics

      Volume: 6 Pages: 80-81

    • Related Report
      2011 Final Research Report
  • [Journal Article] Local excitation of ferromagnetic resonance and its spatially-resolved detection by using an open-ended radio frequency probe2010

    • Author(s)
      Toshu An, Nobuhito Ohnishi, Toyoaki Eguchi, Yukio Hasegawa, and Pavel Kabos
    • Journal Title

      IEEE Magnetics Letters

      Volume: 1

    • Related Report
      2011 Final Research Report
  • [Journal Article] 放射光励起走査トンネル顕微鏡による高分解能元素分析イメージング2010

    • Author(s)
      奥田太一, 江口豊明, 秋山琴音, 木下豊彦, 長谷川幸雄
    • Journal Title

      表面科学

      Volume: vol.31, No.9 Pages: 452-452

    • NAID

      10026633445

    • Related Report
      2011 Final Research Report
  • [Journal Article] Ultrathin films : The thinnest superconductor2010

    • Author(s)
      Yukio Hasegawa
    • Journal Title

      Nature Physics

      Volume: 6 Pages: 80-81

    • Related Report
      2010 Annual Research Report
  • [Journal Article] Ultrathin films : The thinnest superconductor2010

    • Author(s)
      Yukio Hasegawa
    • Journal Title

      Nature Physics 6

      Pages: 80-81

    • Related Report
      2009 Annual Research Report
  • [Journal Article] Observation of the screened potential and the Friedel oscill ation by LT-STM/S2009

    • Author(s)
      Masanori Ono
    • Journal Title

      Applied Surface Science 256

      Pages: 469-474

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Direct evidence of the contribution of surface states to the Kondo resonance2009

    • Author(s)
      Q.Li
    • Journal Title

      Phys.Rev. B 80

      Pages: 1154311-5

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] Unique vortex states on nanosize superconducting islands observed by LT-STM2012

    • Author(s)
      Takaki Sakamoto
    • Organizer
      APS March Meeting
    • Place of Presentation
      Boston, USA
    • Year and Date
      2012-02-28
    • Related Report
      2011 Annual Research Report
  • [Presentation] 走査トンネル顕微鏡によるナノサイズ超伝導体上の量子化磁束観察2012

    • Author(s)
      坂本崇樹,富永貴亮,西尾隆宏,江口豊明,吉田靖雄,長谷川幸雄
    • Organizer
      日本物理学会第67回年次大会
    • Place of Presentation
      西宮
    • Related Report
      2011 Final Research Report
  • [Presentation] 非金属試料に対する走査トンネルポテンショメトリー法の開発2012

    • Author(s)
      浜田雅之、長谷川幸雄
    • Organizer
      2012年春季第59回応用物理学関係連合講演会
    • Place of Presentation
      東京
    • Related Report
      2011 Final Research Report
  • [Presentation] Unique vortex states on nanosize superconducting islands observed by LT-STM2012

    • Author(s)
      T. Sakamoto, T. Tominaga, T. Nishio, T. Eguchi, Y. Yoshida, Y. Hasegawa
    • Organizer
      APs March Meeting
    • Place of Presentation
      Boston, USA
    • Related Report
      2011 Final Research Report
  • [Presentation] Vortices in nano-size superconductors by low-temperature STM/S2012

    • Author(s)
      Yukio Hasegawa
    • Organizer
      CECAM workshop on "Superconductivity in nanosized systems"
    • Place of Presentation
      EPFL, Lausanne, Switzerland
    • Related Report
      2011 Final Research Report
  • [Presentation] Observation of unique vortex states by LT-STM2011

    • Author(s)
      Takaki Sakamoto
    • Organizer
      International Symposium on Surface Science (ISSS-6)
    • Place of Presentation
      Tokyo
    • Year and Date
      2011-12-13
    • Related Report
      2011 Annual Research Report
  • [Presentation] 走査トンネル顕微鏡によるナノサイズ超伝導体上の量子化磁束観察2011

    • Author(s)
      坂本崇樹、富永貴亮、西尾隆宏、江口豊明、吉田靖雄、長谷川幸雄
    • Organizer
      第31回表面科学学術講演会
    • Place of Presentation
      東京
    • Year and Date
      2011-11-12
    • Related Report
      2011 Final Research Report
  • [Presentation] Vortices in nano-size superconductors studied by low-temperature scanning tunneling microscopy/spectroscopy2011

    • Author(s)
      Yukio Hasegawa
    • Organizer
      Stripes 11
    • Place of Presentation
      Rome, Italy(招待講演)
    • Year and Date
      2011-07-12
    • Related Report
      2011 Annual Research Report
  • [Presentation] Observation of unique vortex states by LT-STM2011

    • Author(s)
      T. Sakamoto, T. Tominaga, T. Nishio, T. Eguchi, Y. Yoshida, Y. Hasegawa
    • Organizer
      International Symposium on Surface Science(ISSS-6)
    • Place of Presentation
      Tokyo
    • Related Report
      2011 Final Research Report
  • [Presentation] High-resolution element specific imaging by STM assisted with synchrotron radiation soft X-rays」シンポジウムNanoscience by the fusion of light and scanning probe microscopy(光と走査プローブ顕微鏡の融合によるナノサイエンス)2011

    • Author(s)
      江口豊明
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      富山
    • Related Report
      2011 Final Research Report
  • [Presentation] 走査トンネル顕微鏡によるナノサイズ超伝導体上の量子化磁束観察2011

    • Author(s)
      坂本崇樹,富永貴亮,西尾隆宏,江口豊明,吉田靖雄,長谷川幸雄
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      富山
    • Related Report
      2011 Final Research Report
  • [Presentation] Vortices in nano-size superconductors studied by low-temperature scanning tunneling microscopy/spectroscopy2011

    • Author(s)
      Yukio Hasegawa, Takahiro Nishio, T. Tominaga, T. An, and T. Eguchi
    • Organizer
      Stripes 11
    • Place of Presentation
      Italy
    • Related Report
      2011 Final Research Report
  • [Presentation] 走査トンネル顕微鏡によるナノサイズ超伝導体評価2011

    • Author(s)
      長谷川幸雄
    • Organizer
      理化学研究所ナノサイエンス研究施設交流会
    • Place of Presentation
      和光
    • Related Report
      2011 Final Research Report
  • [Presentation] Nano-Scale Imaging by Scanning Tunneling Spectroscopy : Observation of Vortices in Nano-Size Superconductors and the Screened Potential2010

    • Author(s)
      Yukio Hasegawa
    • Organizer
      The 6th International Workshop on Nano-scale Spectroscopy and Nanotechnology
    • Place of Presentation
      神戸市
    • Year and Date
      2010-10-26
    • Related Report
      2010 Annual Research Report
  • [Presentation] Excitation of vortices in nano-size superconductors studied by low-temperature STM/S2010

    • Author(s)
      Yukio Hasegawa
    • Organizer
      15th International Conference on Solid Films and Surfaces
    • Place of Presentation
      Beijing, China
    • Year and Date
      2010-10-06
    • Related Report
      2010 Annual Research Report
  • [Presentation] Excitation of vortices in nano-size superconductors studied by low-temperature STM/S2010

    • Author(s)
      Yukio Hasegawa
    • Organizer
      18th International Vacuum Congress (IVC-18)
    • Place of Presentation
      Beijing, China
    • Year and Date
      2010-08-24
    • Related Report
      2010 Annual Research Report
  • [Presentation] Vortices in nano-size superconductors by low-temperature STM/S2010

    • Author(s)
      Yukio Hasegawa
    • Organizer
      CECAM workshop on "Superconductivity in nanosized systems"
    • Place of Presentation
      Lausanne, Switzerland
    • Year and Date
      2010-07-06
    • Related Report
      2010 Annual Research Report
  • [Presentation] The screened potential and the Friedel oscillation observed by STM/S2010

    • Author(s)
      Yukio Hasegawa
    • Organizer
      IBM-NIMS symposium on "Characterization and manipulation at the atomic scale"
    • Place of Presentation
      つくば市
    • Year and Date
      2010-06-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] The screened potential and the Friedel oscillation observed by STM/S2010

    • Author(s)
      Yukio Hasegawa
    • Organizer
      International Workshop "In situ characterization of near-surface processes
    • Place of Presentation
      Eisenerz, Austria
    • Year and Date
      2010-05-31
    • Related Report
      2010 Annual Research Report
  • [Presentation] Imaging by scanning tunneling spectroscopy : observation of vortices in nano-size superconductors and the screened potential2010

    • Author(s)
      長谷川幸雄
    • Organizer
      日本物理学会第65回年次大会
    • Place of Presentation
      岡山大学
    • Year and Date
      2010-03-20
    • Related Report
      2009 Annual Research Report
  • [Presentation] Excitation of vrtices innanosize superconductors studied by low-temperture STM/S2010

    • Author(s)
      Y. Hasegawa, T. Nishio, T. An, and T. Eguchi
    • Organizer
      18th International Colloquium on Scanning Probe Microscopy
    • Place of Presentation
      invited
    • Related Report
      2011 Final Research Report
  • [Presentation] Nano-Scale Imaging by Scanning Tunneling Spectroscopy : Observation of Vortices in Nano-Size Superconductors and the Screened Potential2010

    • Author(s)
      Yukio Haseawa
    • Organizer
      The 6th International Workshop on Nano-scale Spectroscopy and Nanotechnology
    • Place of Presentation
      Kobe
    • Related Report
      2011 Final Research Report
  • [Presentation] Excitation of vrtices in nano-size superconductors studied by low-temperature STM/S2010

    • Author(s)
      Yukio Hasegawa, Takahiro Nishio, T. An, and T. Eguchi
    • Organizer
      15th International Conference on Solid Films and Surfaces
    • Place of Presentation
      Beijing, China
    • Related Report
      2011 Final Research Report
  • [Presentation] Excitation of vortices in nano-size superconductors studied by low-temperature STM/S2010

    • Author(s)
      Yukio Hasegawa
    • Organizer
      18th International Vacuum Congress(IVC-18), International Conference on Nanoscience and Technology(ICN+T 2010), 14th International Conference on Surfaces Science(ICSS-14), Vacuum and Surface Sciences Conference of Asia and Australia(VASSCAA-5)
    • Place of Presentation
      Beijing, China
    • Related Report
      2011 Final Research Report
  • [Presentation] Spatial mapping of screened potential and superconductivity by low-temperature scanning tunneling microscopy/spectroscopy2010

    • Author(s)
      Yukio Hasegawa
    • Organizer
      IBM-NIMS symposium on "Characterization and manipulation at the atomic scale"
    • Place of Presentation
      Tsukuba
    • Related Report
      2011 Final Research Report
  • [Presentation] The screened potential and the Friedel oscillation observed by STM/S2010

    • Author(s)
      Yukio Hasegawa
    • Organizer
      International Workshop "In situ characterization of near-surface processes"
    • Place of Presentation
      Eisenerz, Austria
    • Related Report
      2011 Final Research Report
  • [Remarks]

    • URL

      http://hasegawa.issp.u-tokyo.ac.jp/

    • Related Report
      2011 Final Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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