Jahn-Teller effect for very strong coupling

H. Köppel; E. Haller; L. S. Cederbaum; W. Domcke

doi:10.1080/00268978000103061

Jahn-Teller effect for very strong coupling

H. Köppel, E. Haller, L. S. Cederbaum, W. Domcke

Heidelberg University

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34 Scopus citations

Abstract

The strong coupling limit of the E⊗ε Jahn-Teller effect is investigated. The high energy part of the JT band shape is shown to exhibit an oscillatory behaviour in this limit. The oscillations are interpreted by adiabatic and Franck-Condon calculations as arising from the vibrational levels of the upper potential energy surface. A new measure of the coupling strength is proposed which is related to the excitation strength of these levels. It is shown to govern the approach of the exact band shape to the semiclassical limit.

Original language	English
Pages (from-to)	669-677
Number of pages	9
Journal	Molecular Physics
Volume	41
Issue number	3
DOIs	https://doi.org/10.1080/00268978000103061
State	Published - 20 Oct 1980
Externally published	Yes

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10.1080/00268978000103061

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AB - The strong coupling limit of the E⊗ε Jahn-Teller effect is investigated. The high energy part of the JT band shape is shown to exhibit an oscillatory behaviour in this limit. The oscillations are interpreted by adiabatic and Franck-Condon calculations as arising from the vibrational levels of the upper potential energy surface. A new measure of the coupling strength is proposed which is related to the excitation strength of these levels. It is shown to govern the approach of the exact band shape to the semiclassical limit.

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Jahn-Teller effect for very strong coupling

Abstract

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