論文

査読有り
2019年1月1日

Multiple topological states in iron-based superconductors

Nature Physics
  • Peng Zhang
  • Zhijun Wang
  • Xianxin Wu
  • Koichiro Yaji
  • Yukiaki Ishida
  • Yoshimitsu Kohama
  • Guangyang Dai
  • Yue Sun
  • Cedric Bareille
  • Kenta Kuroda
  • Takeshi Kondo
  • Kozo Okazaki
  • Koichi Kindo
  • Xiancheng Wang
  • Changqing Jin
  • Jiangping Hu
  • Ronny Thomale
  • Kazuki Sumida
  • Shilong Wu
  • Koji Miyamoto
  • Taichi Okuda
  • Hong Ding
  • G. D. Gu
  • Tsuyoshi Tamegai
  • Takuto Kawakami
  • Masatoshi Sato
  • Shik Shin
  • 全て表示

15
1
開始ページ
41
終了ページ
47
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1038/s41567-018-0280-z
出版者・発行元
Springer Science and Business Media LLC

© 2018, The Author(s), under exclusive licence to Springer Nature Limited. Topological materials and unconventional iron-based superconductors are both important areas of study but, to date, relatively little overlap has been identified between these two fields. However, the combination of topological bands and superconductivity promises the manifestation of exotic superconducting states, including Majorana fermions, the central component of topological quantum computation. Here, using laser-based, spin-resolved and angle-resolved photoemission spectroscopy and density functional theory calculations, we have identified both topological insulator and Dirac semimetal states near the Fermi energy in different iron-based superconducting compounds. Carrier doping can tune these topologically non-trivial bands to the Fermi energy, potentially allowing access to several different superconducting topological states in the same material. These results reveal the generic coexistence of superconductivity and multiple topological states in iron-based superconductors, indicating that this broad class of materials is a promising platform for high-temperature topological superconductivity.

リンク情報
DOI
https://doi.org/10.1038/s41567-018-0280-z
arXiv
http://arxiv.org/abs/arXiv:1809.09977
URL
http://arxiv.org/abs/1809.09977v1
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85053821004&origin=inward
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85053821004&origin=inward
ID情報
  • DOI : 10.1038/s41567-018-0280-z
  • ISSN : 1745-2473
  • eISSN : 1745-2481
  • arXiv ID : arXiv:1809.09977
  • SCOPUS ID : 85053821004

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