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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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.

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Journal Article
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Physical review B
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01 Oct 2012 10:26
Last Modified:
19 Sep 2023 00:54