Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session HH05: V: Superconductivity: Theory and Experiment
11:30 AM–1:30 PM,
Wednesday, March 6, 2024
Room: Virtual Room 05
Sponsoring
Unit:
DCMP
Chair: Ekta Bhatia, NYCREATES and SUNY; Yang Zhang, University of Tennessee
Abstract: HH05.00007 : Nonlinear Optical Responses in Superconductors under Magnetic Field*
12:42 PM–12:54 PM
Presenter:
Hiroto Tanaka
(Graduate School of Science, Kyoto University)
Authors:
Hiroto Tanaka
(Graduate School of Science, Kyoto University)
Youichi Yanase
(Kyoto Univ)
Hikaru Watanabe
(University of Tokyo)
In this study, we investigate the second-order nonlinear response of two-dimensional Rashba superconductors under magnetic fields. Being influenced by quantum geometric properties in the electronic band, superconducting nonlinear responses are enhanced in close relation with the Dirac electron states. We discuss the effect of T symmetry breaking in the superconducting nonreciprocal responses from the viewpoint of symmetry, quantum geometry, and peculiar paramagnetic response.
[1] T. Xu et al., Phys. Rev. B 100, 220501 (2019).
[2] H. Watanabe et al., Phys. Rev. B 105, 024308 (2022).
[3] H. Tanaka et al., Phys. Rev. B 107, 024513 (2023).
*This work is supported by JSPS KAKENHI (Grants No. JP23KJ1344, No. JP23K13058, No. 21K18145, No. 22H04933, No. 22H01181, No. 23K17353).
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