Continuous Ferroelastic Phase Transition of a KBr: KCN Mixed Crystal

25 November 1985

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 55 (22) , 2445-2448
https://doi.org/10.1103/physrevlett.55.2445

Abstract

The ferroelastic phase transition of

{(KBr)}_{0.27}

{(KCN)}_{0.73}

has been studied by x-ray diffraction, ultrasonics, and inelastic neutron scattering. It is the first example of a cubic crystal where the elastic shear constant

C_{44}

softens completely corresponding to the

m = 2

universality class.

C_{44}

and the Bragg intensities show a nonclassical critical behavior.

Keywords

This publication has 17 references indexed in Scilit:

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