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Seminar
Speaker
Amit Agarwal (Indian Institute of Technology, Kanpur)
Date & Time
Tue, 25 August 2020, 15:30 to 17:00
Venue
Online seminar
Resources
Abstract

Motivated by the recent prediction of the Magnus Hall effect in systems with broken inversion symmetry, in this paper we study the Magnus Nernst effect and the Magnus thermal Hall effect. In presence of an in-built electric field, the self rotating wave-packets of electrons with finite Berry curvature generate a Magnus velocity perpendicular to both. This anomalous Magnus velocity gives rise to the Magnus Hall transport which manifests in all four electro-thermal transport coefficients. In this paper, we demonstrate the existence of the Magnus Nernst and Magnus thermal Hall effect in monolayer WTe2 and gapped bilayer graphene, using the semiclassical Boltzmann formalism. We show that the Magnus velocity can also give rise to Magnus valley Hall effect in gapped graphene. Magnus velocity can be useful for experimentally probing the Berry curvature, and design of novel electrical and electro-thermal devices (arXiv:2007.12641).

Please click on the link https://zoom.us/j/95675209874?pwd=S0dlTkVqZTQ0QlRhb1VEQ3hqV2R0dz09 to join the Zoom meeting

Meeting ID: 956 7520 9874

Passcode: 681306