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Momentum space imaging of nonsymmorphic superconductors with locally broken inversion symmetry

Author

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  • Mehdi Biderang

    (University of Manitoba
    Asia Pacific Center for Theoretical Physics
    University of Manitoba)

  • Mohammad-Hossein Zare

    (Qom University of Technology)

  • Alireza Akbari

    (Asia Pacific Center for Theoretical Physics
    Max Planck Institute for the Chemical Physics of Solids
    POSTECH
    POSTECH)

Abstract

The failure of spatial inversion symmetry in noncentrosymmetric materials introduces two different types of spin-independent and spin-dependent electron hopping. The spin-dependent term can be translated into a quasi-spin–orbit coupling and may affect the electronic structure. In the locally noncentrosymmetric crystals, the presence of a sublattice degree of freedom generates a distinction between the inter- and intra-sublattice hopping integrals. The spin-dependent part of the former (latter), which is even (odd) under parity, is called symmetric (antisymmetric) quasi-spin–orbit coupling. Here, we show the consequences of such quasi-spin–orbit couplings on the electronic band structure, and study their characteristic features via the quasiparticle interference method. We extend our discussions to a realistic class of materials, known as transition metal oxides. Graphic abstract

Suggested Citation

  • Mehdi Biderang & Mohammad-Hossein Zare & Alireza Akbari, 2021. "Momentum space imaging of nonsymmorphic superconductors with locally broken inversion symmetry," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 94(3), pages 1-7, March.
    • Handle: RePEc:spr:eurphb:v:94:y:2021:i:3:d:10.1140_epjb_s10051-021-00080-4
    DOI: 10.1140/epjb/s10051-021-00080-4
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