Acoustomagnetoelectric effect in two-dimensional materials: Geometric resonances and Weiss oscillations

We study electron transport in two-dimensional materials with parabolic and linear (graphene) dispersions of the carriers in the presence of surface acoustic waves and an external magnetic field using semiclassical Boltzmann equations approach. We observe an oscillatory behavior of both the longitud...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2020-04
Main Authors: Savenko, I G, Kalameitsev, A V, Mourokh, L G, Kovalev, V M
Format: Article
Language:English
Subjects:
Acoustic resonance
Acoustics
Electron gas
Electron transport
Graphene
Magnetic fields
Oscillations
Superlattices
Surface acoustic waves
Two dimensional materials
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We study electron transport in two-dimensional materials with parabolic and linear (graphene) dispersions of the carriers in the presence of surface acoustic waves and an external magnetic field using semiclassical Boltzmann equations approach. We observe an oscillatory behavior of both the longitudinal and Hall electric currents as functions of the surface acoustic wave frequency at a fixed magnetic field and as functions of the inverse magnetic field at a fixed frequency of the acoustic wave. We explain the former by the phenomenon of geometric resonances, while we relate the latter to the Weiss-like oscillations in the presence of the dynamic superlattice created by the acoustic wave. Thus we demonstrate the dual nature of the acoustomagnetoelectric effect in two-dimensional electron gas.
ISSN:2331-8422
DOI:10.48550/arxiv.2004.13275