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Pis'ma v Zh. Èksper. Teoret. Fiz., 2002, Volume 76, Issue 9, Pages 650–654 (Mi jetpl2969)  

This article is cited in 2 scientific papers (total in 2 papers)

CONDENSED MATTER

On the theory of Boson peak in glasses

V. L. Gurevicha, D. A. Parshinb, H. R. Schoberc

a Ioffe Physico-Technical Institute, Russian Academy of Sciences, St. Petersburg
b Saint-Petersburg State Technical University
c Institut für Festkörperforschung, Forschungszentrum, Jülich

Abstract: A universal mechanism of the Boson peak formation in glasses is proposed. The mechanism is based on the concept of interacting quasi-local oscillators. Even in the case of weak interaction the low-frequency spectrum becomes unstable. Due to anharmonicity the system undergoes a transition into a new stable configuration. As a result, below some characteristic frequency $\omega_c$, proportional to the typical strength of interaction, the renormalized density of states becomes a universal function of $\omega$ with a Boson peak feature, i.e. the reduced density of states $g(\omega)/\omega^2$ has a maximum at a frequency $\omega_b\ll\omega_c$. We derive an analytical form of this function.

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English version:
Journal of Experimental and Theoretical Physics Letters, 2002, 76:9, 553–557

Document Type: Article
PACS: 61.43.Fs, 63.50.+x, 78.30.Ly
Received: 23.09.2002
Language: English

Citation: V. L. Gurevich, D. A. Parshin, H. R. Schober, “On the theory of Boson peak in glasses”, Pis'ma v Zh. Èksper. Teoret. Fiz., 76:9 (2002), 650–654; JETP Letters, 76:9 (2002), 553–557

Citation in format AMSBIB
\Bibitem{GurParSch02}
\by V.~L.~Gurevich, D.~A.~Parshin, H.~R.~Schober
\paper On the theory of Boson peak in glasses
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2002
\vol 76
\issue 9
\pages 650--654
\mathnet{http://mi.mathnet.ru/jetpl2969}
\transl
\jour JETP Letters
\yr 2002
\vol 76
\issue 9
\pages 553--557
\crossref{https://doi.org/10.1134/1.1538288}
\scopus{http://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-0038891577}


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    Citing articles on Google Scholar: Russian citations, English citations
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    This publication is cited in the following articles:
    1. A. V. Naumov, Yu. G. Vainer, “Single molecules as spectral nanoprobes for the diagnostics of dynamic processes in solid media”, Phys. Usp., 52:3 (2009), 298–304  mathnet  crossref  crossref  adsnasa  isi
    2. Baran A., Botko M., Kajnakova M., Feher A., Feodosyev S., Syrkin E., Klochko M., Tovstyuk N., Grygorchak I., Fomenko V., “Low-Temperature Vibration Characteristics in Inse Single Crystals Intercalated By Ni”, Low Temp. Phys., 41:11 (2015), 930–935  crossref  isi  elib  scopus
  •       Pis'ma v Zhurnal ksperimental'noi i Teoreticheskoi Fiziki
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