Publication
Solid State Communications
Paper

Soft phonons and the central mode at structural phase transitions

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Abstract

Applying Landau's quasi-particle picture to an interacting phonon system it is shown that the softening of phonon modes is connected with an enhancement of the quasi-particle interaction. This in turn leads to a critical slowing-down of fluctuations around local equilibrium which may give rise to an additional central peak in the scattering function. © 1973.

Date

01 Oct 1973

Publication

Solid State Communications

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