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

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

10 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 - 1 Jan 1983
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

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10.1016/0038-1098(83)90017-0

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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",

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

AU - Entin-Wohlman, O.

AU - Gutfreund, H.

AU - Weger, M.

PY - 1983/1/1

Y1 - 1983/1/1

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.

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U2 - 10.1016/0038-1098(83)90017-0

DO - 10.1016/0038-1098(83)90017-0

M3 - Article

AN - SCOPUS:0020736874

SN - 0038-1098

VL - 46

SP - 1

EP - 5

JO - Solid State Communications

JF - Solid State Communications

IS - 1

ER -

Mass and frequency renormalization for quadratic electron-phonon coupling

Abstract

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