Bulletin of the American Physical Society
2024 APS March Meeting
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session Z61: Cooperative Phenomena II
11:30 AM–2:06 PM,
Friday, March 8, 2024
Room: 208AB
Sponsoring
Unit:
GMAG
Chair: Clarina dela Cruz, Oak Ridge National Laboratory
Abstract: Z61.00005 : Quantum geometry induced nonlinear transport in altermagnets*
12:18 PM–12:30 PM
Presenter:
Sayed Ali Akbar Ghorashi
(Stony brook University)
Authors:
Yuan Fang
(Rice University)
Jennifer Cano
(Stony Brook University)
Sayed Ali Akbar Ghorashi
(Stony brook University)
Two Dirac nodes also contribute a divergence to the nonlinear response, whose scaling changes as a function of SOC. Finally, we apply our results to thin films of the 3D altermagnet RuO2. Our work uncovers distinct features of altermagnets in nonlinear transport, providing experimental signatures as well as a guide to disentangling the different components of their quantum geometry.
*AFOSR under. FA9550-20-1-0260, DE-SC0018197, and the AFOSR under Grant No. FA9550-21-1-0356.
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