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Optical branch of magnetophonons in a double-layer Wigner crystal

Falko, Vladimir (1994) Optical branch of magnetophonons in a double-layer Wigner crystal. Physical Review B, 49 (11). pp. 7774-7777. ISSN 0163-1829

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Abstract

The Wigner crystal of electrons in a couple of two-dimensional layers in semiconductor structures is shown to form a two-component lattice and to possess a specific excitation, namely, an optical phonon mode. The calculated frequencies of optical magnetophonons in the magnetically frozen double-layer Wigner crystal demonstrate exponential dependence on the interlayer spacing and electronic density, and we guess that their observation can give a direct indication of the crystalline ordering in the magnetic freeze-out regime.

Item Type: Article
Journal or Publication Title: Physical Review B
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 57082
Deposited By: ep_importer_pure
Deposited On: 01 Oct 2012 11:26
Refereed?: Yes
Published?: Published
Last Modified: 09 Apr 2014 23:58
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/57082

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