Psuedospin in CeRh<sub>2</sub>As<sub>2</sub>

ORAL

Abstract

A field-induced novel phase transition, from even- to odd-parity superconducting pairing state, has recently been observed in CeRh2As2 [1].  The question why this is the case in CeRh2As2 and not in other materials remains to be answered.  In this talk, based on DFT calculations and supporting symmetry arguments, we address question through an examination of the normal state properties, including the Fermi surface arising from renormalized 4f bands and electron spin polarization near the chemical potential of CeRh2As2 [2].

*US Department of Energy, DE-SC0017632 and DE-SC0021971. Marsden Fund Council, Royal Society Te Aparangi.

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Publication: [1] S. Khim et al., Science 373, 1012 (2021).
[2] D.C. Cavanagh et al., arXiv:2106.02698 (2021).

Presenters

  • TATSUYA SHISHIDOU

    • University of Wisconsin - Milwaukee

Authors

  • TATSUYA SHISHIDOU

    • University of Wisconsin - Milwaukee

  • David C Cavanagh

    • Univ of Otago
    • University of Otago

  • Philip Brydon

    • Univ of Otago

  • Daniel F Agterberg

    • University of Wisconsin - Milwaukee

  • Michael Weinert

    • University of Wisconsin - Milwaukee
    • Department of Physics, University of Wisconsin, Milwaukee, Wisconsin 53211, United States