Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session W59: Weyl semimetal, Transport I
8:00 AM–10:48 AM,
Friday, March 6, 2020
Room: Mile High Ballroom 3C
Sponsoring Unit: DMP
Abstract: W59.00005 : Large in-plane Hall/Nernst effect generated by Berry curvature in Weyl semimetallic phase of indium doped Pb1-xSnxTe
Interestingly, in the Weyl semimetallic phase of indium doped Pn1-xSnxTe, large in-plane Hall/Nernst signals are observed. This suggests the existence of large Berry curvature coming from the Weyl nodes. When no magnetic field is applied, the time reversal symmetry requires the Weyl nodes to distribute such that Hall/Nernst signals vanish completely. As the magnetic field is turned on, the Weyl nodes move in the momentum space and generate the finite value of Hall/Nernst signals, even when the magnetic field is applied in the plane. The implication of the experimental data will be discussed.
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