Structural instabilities of a two-dimens
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A.O. Govorov
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Article
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1998
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Elsevier Science
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English
โ 68 KB
We consider the instability of a two-dimensional Wigner crystal in a short-period lateral superlattice. To find instabilities, we calculate the phonon spectrum of the electron lattice deformed by a periodic potential. We show that one of the transverse modes of the deformed electron crystal becomes