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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2001, Volume 73, Issue 2, Pages 84–86 (Mi jetpl4297)  
CONDENSED MATTER

Nonadiabatic effects in the phonon spectrum of metal compounds

A. I. Morosov

Moscow State Institute of Radio-Engineering, Electronics and Automation (Technical University)
Full-text PDF (148 kB)
Abstract: It is shown that nonadiabatic corrections to the dispersion law of optical phonons in the region of small wave vectors in the case of branches, for which the vibration with a zero wave vector is not accompanied by the appearance of a dipole moment in the ionic lattice, are significant for all possible directions of the wave vector. If a dipole moment arises, nonadiabatic corrections reach a noticeable value only for the wave-vector directions that are almost perpendicular to the direction of the dipole moment.
Received: 07.12.2000
English version:
Journal of Experimental and Theoretical Physics Letters, 2001, Volume 73, Issue 2, Pages 79–81
DOI: https://doi.org/10.1134/1.1358424
Bibliographic databases:
Document Type: Article
PACS: 63.20.-e
Language: Russian
Citation: A. I. Morosov, “Nonadiabatic effects in the phonon spectrum of metal compounds”, Pis'ma v Zh. Èksper. Teoret. Fiz., 73:2 (2001), 84–86; JETP Letters, 73:2 (2001), 79–81
Citation in format AMSBIB
\Bibitem{Mor01}
\by A.~I.~Morosov
\paper Nonadiabatic effects in the phonon spectrum of metal compounds
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2001
\vol 73
\issue 2
\pages 84--86
\mathnet{http://mi.mathnet.ru/jetpl4297}
\transl
\jour JETP Letters
\yr 2001
\vol 73
\issue 2
\pages 79--81
\crossref{https://doi.org/10.1134/1.1358424}
\scopus{https://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-0038895395}
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