Title: Peierls-frohlich instability and kohn anomaly
Authors: Pule, Jv ×
Verbeure, André
Zagrebnov, Va #
Issue Date: Jul-1994
Publisher: Kluwer Academic Publishers
Series Title: Journal of statistical physics vol:76 issue:1-2 pages:159-182
Abstract: A mathematical basis is given to the Peierls-Frohlich instability and the Kohn anomaly. The techniques and ideas are based on the recently developed mathematical theory of quantum fluctuations and response theory. We prove that there exists a unique resonant one-mode interaction between electrons and phonons which is responsible for the Peierls Frohlich instability and the phase transition in the Mattis-Langer model. We prove also that the softening of this phonon mode at the critical temperature (Kohn anomaly) is a consequence of the critical slowing down of the dynamics of the lattice distortion fluctuations. It is the result of the linear dependence of two fluctuation operators corresponding to the frozen charge density wave and the distortion order parameter.
ISSN: 0022-4715
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Theoretical Physics Section
× corresponding author
# (joint) last author

Files in This Item:

There are no files associated with this item.

Request a copy


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science