Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session P02: Topological Materials -- New Theoretical Approaches
2:30 PM–5:30 PM,
Wednesday, March 6, 2019
BCEC
Room: 107A
Sponsoring
Unit:
DMP
Chair: Ying Ran, Boston Coll
Abstract: P02.00010 : Anomalous Hall Effect in Symmetry Protected Toplogical Metals
4:42 PM–4:54 PM
Presenter:
Xuzhe Ying
(University of Minnesota)
Authors:
Xuzhe Ying
(University of Minnesota)
Alex Kamenev
(University of Minnesota)
In this work, we studied the skew scattering contribution to the thermal Hall conductivity in such a system. Our model is based on a two dimensional p+ip superconductor with a supercurrent applied in a particular direction. This system breaks time reversal symmetry which is necessary for skew scattering processes. The disorder potential is modeled by a delta potential. The scattering matrix is calculated self-consistently with the Lippman-Schwinger equation. With the help of the Boltzmann transport equation, we were able to show that skew scattering does not smear out the sharp feature from the intrinsic contribution of the thermal Hall conductivity at the topological phase transition.
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