Topological Surface State Observed in Superconducting (Ir1-xPtx)Te2

ORAL

Abstract

Topologically non-trivial surface state is the hallmark of 3D topological insulators and topological superconductors, where spin-orbit coupling (SOC) plays an essential role. By Ir site doping of 5{\%} Pt, the huge SOC material IrTe2 becomes a superconductor with maximal Tc $=$ 3K. Our angle resolve photoemission spectroscopy (ARPES) study combined with LDA analysis demonstrate the surface states of (Ir1-xPtx)Te2 is toplogically non-trivial.

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Authors

  • Tian Qian

    Institute of Physics, Chinese Academy of Sciences

  • Hu Miao

    Institute of Physics, Chinese Academy of Sciences

  • Gang Xu

    Institute of Physics, Chinese Academy of Sciences

  • X. Dai

    Institute of Physics, Chinese Academy of Sciences, Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences

  • Z. Fang

    Institute of Physics, Chinese Academy of Sciences, Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences

  • Aifa Fang

    Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China, Institute of Physics, Chinese Academy of Sciences

  • Nanlin Wang

    Institute of Physics, Chinese Academy of Sciences

  • Hong Ding

    Institute of Physics, Chinese Academy of Sciences