Lifshitz-point critical and tricritical behavior in anisotropically stressed perovskites

Amnon Aharony*, Alastair D. Bruce

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

67 Scopus citations

Abstract

The antiferrodistortive phase transitions of some perovskite crystals, driven first order by strongly cubic order-parameter fluctuations, are shown to become continuous at finite anisotropic stresses favoring ordering of one order-parameter component. The associated critical and tricritical behavior will be that of one of a spectrum of uniaxial Lifshitz systems, its precise character reflecting the form of the anisotropy in the soft-mode dispersion. Our predictions are in substantial accord with recent experiments on RbCaF3.

Original languageEnglish
Pages (from-to)462-465
Number of pages4
JournalPhysical Review Letters
Volume42
Issue number7
DOIs
StatePublished - 1979

Fingerprint

Dive into the research topics of 'Lifshitz-point critical and tricritical behavior in anisotropically stressed perovskites'. Together they form a unique fingerprint.

Cite this