Observation of topological superconductivity on the surface of an iron-based superconductor

  • Peng Zhang
    Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan.
  • Koichiro Yaji
    Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan.
  • Takahiro Hashimoto
    Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan.
  • Yuichi Ota
    Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan.
  • Takeshi Kondo
    Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan.
  • Kozo Okazaki
    Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan.
  • Zhijun Wang
    Department of Physics, Princeton University, Princeton, NJ 08544, USA.
  • Jinsheng Wen
    National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China.
  • G. D. Gu
    Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973, USA.
  • Hong Ding
    Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
  • Shik Shin
    Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan.

書誌事項

公開日
2018-04-13
資源種別
journal article
DOI
  • 10.1126/science.aan4596
  • 10.48550/arxiv.1706.05163
公開者
American Association for the Advancement of Science (AAAS)

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説明

<jats:title>A topological superconductor</jats:title> <jats:p> A promising path toward topological quantum computing involves exotic quasiparticles called the Majorana bound states (MBSs). MBSs have been observed in heterostructures that require careful nanofabrication, but the complexity of such systems makes further progress tricky. Zhang <jats:italic>et al.</jats:italic> identified a topological superconductor in which MBSs may be observed in a simpler way by looking into the cores of vortices induced by an external magnetic field. Using angle-resolved photoemission, the researchers found that the surface of the iron superconductor FeTe <jats:sub>0.55</jats:sub> Se <jats:sub>0.45</jats:sub> satisfies the required conditions for topological superconductivity. </jats:p> <jats:p> <jats:italic>Science</jats:italic> , this issue p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6385" page="182" related-article-type="in-this-issue" vol="360" xlink:href="10.1126/science.aan4596">182</jats:related-article> </jats:p>

収録刊行物

  • Science

    Science 360 (6385), 182-186, 2018-04-13

    American Association for the Advancement of Science (AAAS)

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