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Soviet Physics Journal

, Volume 25, Issue 7, pp 598–600 | Cite as

Anomalous vibrational states of a monatomic surface film

  • A. S. Dolgov
Physics of Semiconductors and Dielectrics

Abstract

Vibrational states of a one-dimentional chain of atoms which models peculiarities of a monatomic surface film are considered. A set of nontrivial equilibrium states of the system is determined in whose vicinity almost linear band vibrations are possible. Peculiarities of anomalous branches of vibrational states are discussed. It is shown that the low-frequency gap of vibrational states disappears under certain conditions. This determines the possibility of appearance of low-frequency sound vibrations which are not possible for a trivial equilibrium distribution of atoms in the film.

Keywords

Equilibrium State Surface Film Equilibrium Distribution Vibrational State Band Vibration 
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Literature cited

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    L. A. Bol'shov, A. P. Napartovich, A. G. Naumovets, and A. G. Fedorus, Usp. Fiz. Nauk,122, 126 (1977).Google Scholar
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    A. M. Kosevich and A. S. Kovalev, Zh. Eksp. Teor. Fiz.,67, 1793 (1974).Google Scholar
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Copyright information

© Plenum Publishing Corporation 1983

Authors and Affiliations

  • A. S. Dolgov
    • 1
  1. 1.N. E. Zhukovskii Kharkov Aviation InstituteKharkov

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