Bulletin of the American Physical Society
APS March Meeting 2022
Volume 67, Number 3
Monday–Friday, March 14–18, 2022; Chicago
Session W63: Kondo Physics
3:00 PM–6:00 PM,
Thursday, March 17, 2022
Room: Hyatt Regency Hotel -Grant Park A
Sponsoring
Unit:
DCMP
Chair: Matthew Enjalran, Southern Conn State Univ
Abstract: W63.00010 : Nonlinear response induced by Ferromagnetism in a Noncentrosymmetric Kondo Lattice system
4:48 PM–5:00 PM
Presenter:
Koki Shinada
(Kyoto University)
Authors:
Koki Shinada
(Kyoto University)
Robert Peters
(Kyoto University)
In this work [3], we treat with other correlation effects, ferromagnetism and Kondo effect. We analyze the nonlinear conductivity in a noncentrosymmetric Kondo lattice system with Rashba type spin-orbit coupling. We mainly focus on the ferromagnetic phase, in which the second-order nonlinear conductivity becomes finite. Remarkably, we find that the second-order conductivity has a strong spin dependence due to spin-selective Kondo insulator. Finally, we analyze sign changes in the nonlinear conductivity, which can be explained by a combination of correlation effects and the energetic shift due to the occurring ferromagnetism and Kondo effect.
[1] S. Dzsaber et.al., PNAS 118, 10.1073/pnas.2013386118
[2] A. Kofuj et.al., PRB 104, 085151
[3] K.S. and R. Peters, arxiv:2110.10496
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