Phys. Rev. B 49, 7774–7777 (1994)Optical branch of magnetophonons in a double-layer Wigner crystalReceived 15 September 1993; published in the issue dated 15 March 1994 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. © 1994 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.49.7774
DOI:
10.1103/PhysRevB.49.7774
PACS:
73.20.Dx, 73.20.Mf, 73.40.Kp, 72.15.Nj
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