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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/117193


    Title: Topological superconductor in quasi-one-dimensional Tl2-xMo6Se6
    Authors: Shin-Ming Huang, Chuang-Han Hsu, Su-Yang Xu, Chi-Cheng Lee, Shiue-Yuan Shiau, Hsin Lin, and Arun Bansil
    Date: 2018-01-16
    Issue Date: 2019-10-03 12:10:43 (UTC+8)
    Publisher: APS
    Abstract: We propose that the quasi-one-dimensional molybdenum selenide compound Tl 2 − x Mo 6 Se 6 is a time-reversal-invariant topological superconductor induced by intersublattice pairing, even in the absence of spin-orbit coupling (SOC). No noticeable change in superconductivity is observed in Tl-deficient ( 0 ≤ x ≤ 0.1 ) compounds. At weak SOC, the superconductor prefers the triplet d vector lying perpendicular to the chain direction and two-dimensional E2u symmetry, which is driven to a nematic order by spontaneous rotation symmetry breaking. The locking energy of the d vector is estimated to be weak and hence the proof of its direction would rely on tunneling or phase-sensitive measurements.
    Relation: PHYSICAL REVIEW B 97, 014510
    DOI: 10.1103/PhysRevB.97.014510
    Appears in Collections:[Graduate Institute & Department of Physics] Journal Article

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