Random-strain-field effects on the low-temperature state of KCN

10 June 1991

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

Vol. 66 (23) , 3016-3019
https://doi.org/10.1103/physrevlett.66.3016

Abstract

Random strain fields have been introduced into samples of KCN by pressing pellets from powder and by thermal cycling. X-ray diffractograms show that the low-temperature structure depends strongly on the sample history. In some cycles the noncubic low-temperature phases have been suppressed in mesoscopic surface regions of the samples and the quadrupolar-glass state formed instead.

Keywords

This publication has 22 references indexed in Scilit:

Polymorphism and the glasslike state of cyanide mixed crystals: A mesoscopic problem
Physical Review B, 1990
Raman and infrared studies of the ${CN}^{-}$ stretching-mode anharmonicity and its relation to phase transitions in pure alkali cyanides
Physical Review B, 1989
Two-dimensional isotropic orientational glasses: a computer-simulation study
Zeitschrift für Physik B Condensed Matter, 1989
The influence of random stresses on the scattering of a crystal with a planar elastic instability
Journal of Physics C: Solid State Physics, 1988
Optical studies of thermal cycling and hysteresis effects in elastic order-disorder phase transformations. I. Pure alkali-metal cyanide crystals
Physical Review B, 1988
The Glasslike State of the Mixed Alkali Halide-Alkali Cyanides
Physica Scripta, 1987
Low-Frequency Shear Response of ${(KBr)}_{1 - x} {(KCN)}_{x}$
Physical Review Letters, 1986
Theory of the Orientational Glass State in $M {(CN)}_{x} X_{1 - x}$ Mixed Crystals
Physical Review Letters, 1986
Dipolar Reorientation and Order-Disorder Behavior of Pure and Mixed Alkali Cyanides
Physical Review Letters, 1983
The crystal structure of tosyl-L-prolyl-L-hydroxyproline monohydrate
Acta Crystallographica, 1962