Isotropic superconducting gaps with enhanced pairing on electron Fermi surfaces in FeTe 0.55Se 0.45

H. Miao, P. Richard, Y. Tanaka, K. Nakayama, T. Qian, K. Umezawa, T. Sato, Y. M. Xu, Y. B. Shi, N. Xu, X. P. Wang, P. Zhang, H. B. Yang, Z. J. Xu, J. S. Wen, G. D. Gu, X. Dai, J. P. Hu, T. Takahashi, H. Ding

研究成果: Article査読

115 被引用数 (Scopus)

抄録

We used angle-resolved photoemission spectroscopy to reveal directly the momentum distribution of the superconducting gap in FeTe 1-xSe x, which has the simplest structure of all Fe-based superconductors. We found isotropic superconducting gaps on all Fermi surfaces whose sizes can be fitted by a single gap function derived from a strong coupling approach, promoting local antiferromagnetic exchange interactions as a serious candidate for the pairing origin.

本文言語English
論文番号094506
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
85
9
DOI
出版ステータスPublished - 2012 3 6

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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