Between Harmonic Crystal and Glass: Solids with Dimpled Potential-Energy Surfaces Having Multiple Local Energy Minima

Solids with dimpled potential-energy surfaces are ubiquitous in nature and, typically, exhibit structural (elastic or phonon) instabilities. Dimpled potentials are not harmonic; thus, the conventional quasiharmonic approximation at finite temperatures fails to describe anharmonic vibrations in such...

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Bibliographic Details

Published in:	Crystals
Main Authors:	Nikolai A. Zarkevich, Duane D. Johnson
Format:	Article
Language:	English
Published:	MDPI AG 2022-01-01
Subjects:	solid–solid symmetry-breaking phase transition lattice instability anharmonic phonons
Online Access:	https://www.mdpi.com/2073-4352/12/1/84