Mass and frequency renormalization for quadratic electron-phonon coupling

O. Entin-Wohlman; H. Gutfreund; M. Weger

doi:10.1016/0038-1098(83)90017-0

Mass and frequency renormalization for quadratic electron-phonon coupling

O. Entin-Wohlman^*
, H. Gutfreund
, M. Weger

^*Corresponding author for this work

School of Physics and Astronomy

Hebrew University of Jerusalem

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

The effect of an electron-phonon coupling quadratic in the phonon operators upon the effective electronic mass and the phonon frequency is calculated to second order in perturbation theory. The renormalization effects increase linearly with the temperature, but, for extended molecules, that of the electronic mass might be considerably larger than that of the phonon frequency. The results are discussed in the context of organic metals.

Original language	English
Pages (from-to)	1-5
Number of pages	5
Journal	Solid State Communications
Volume	46
Issue number	1
DOIs	https://doi.org/10.1016/0038-1098(83)90017-0
State	Published - Apr 1983

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title = "Mass and frequency renormalization for quadratic electron-phonon coupling",

abstract = "The effect of an electron-phonon coupling quadratic in the phonon operators upon the effective electronic mass and the phonon frequency is calculated to second order in perturbation theory. The renormalization effects increase linearly with the temperature, but, for extended molecules, that of the electronic mass might be considerably larger than that of the phonon frequency. The results are discussed in the context of organic metals.",

author = "O. Entin-Wohlman and H. Gutfreund and M. Weger",

year = "1983",

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T1 - Mass and frequency renormalization for quadratic electron-phonon coupling

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AU - Gutfreund, H.

AU - Weger, M.

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N2 - The effect of an electron-phonon coupling quadratic in the phonon operators upon the effective electronic mass and the phonon frequency is calculated to second order in perturbation theory. The renormalization effects increase linearly with the temperature, but, for extended molecules, that of the electronic mass might be considerably larger than that of the phonon frequency. The results are discussed in the context of organic metals.

AB - The effect of an electron-phonon coupling quadratic in the phonon operators upon the effective electronic mass and the phonon frequency is calculated to second order in perturbation theory. The renormalization effects increase linearly with the temperature, but, for extended molecules, that of the electronic mass might be considerably larger than that of the phonon frequency. The results are discussed in the context of organic metals.

UR - https://www.scopus.com/pages/publications/0020736874

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JO - Solid State Communications

JF - Solid State Communications

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Mass and frequency renormalization for quadratic electron-phonon coupling

Abstract

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