Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session A14: Topological Superconductors and Superfluids: Theory
8:00 AM–10:48 AM,
Monday, March 4, 2024
Room: M100E
Sponsoring
Unit:
DCMP
Chair: Bitan Roy, Lehigh University
Abstract: A14.00012 : Electric response of Majorana fermions in topological crystalline superconductors
10:12 AM–10:24 AM
Presenter:
Yuki Yamazaki
(RIKEN)
Authors:
Yuki Yamazaki
(RIKEN)
Ai Yamakage
(Nagoya University)
Shingo Kobayashi
(RIKEN)
In this talk, we extend the above theory to the case of a double Majorana Kramers pair, which is able to respond to an electric perturbation. Establishing the classification of the double Majorana Kramers pair in terms of the wallpaper groups, we clarify all possible electric multipole responses. In addition, we reveal the relationship between the electric multipole responses and pairing symmetry. As an example, we demonstrate a specific irreducible representation of a uniform strain yields gap in the double Majorana Kramers pair for topological crystalline superconductor candidate Sr3SnO. This highlights the validity of electric detection of pairing symmetry.
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