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Surface acoustic wave induced magnetoresistance oscillations in a 2D electron gas.

Robinson, John P. and Kennett, Malcolm P. and Cooper, Nigel R. and Falko, Vladimir I. (2004) Surface acoustic wave induced magnetoresistance oscillations in a 2D electron gas. Physical Review Letters, 93 (3). 036804. ISSN 1079-7114

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Abstract

We study the geometrical commensurability oscillations imposed on the resistivity of 2D electrons in a perpendicular magnetic field by a propagating surface acoustic wave (SAW). We show that, for ω<ωc, this effect contains an anisotropic dynamical classical contribution increasing the resistivity and a nonequilibrium quantum contribution isotropically decreasing the resistivity, and we predict zero-resistance states associated with geometrical commensurability at large SAW amplitude.

Item Type: Article
Journal or Publication Title: Physical Review Letters
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 23904
Deposited By: ep_ss_importer
Deposited On: 23 Feb 2009 15:57
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 16:18
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/23904

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