Abstract
Ultrasonic measurements on the mixed crystal K Br0.96(CN)0.04 show a minimum of most of the elastic constants at 16 K. In addition we determinedc 11(T) at 10 MHz and at 50 MHz observing dispersion effects. These results and previous Brillouin and neutron scattering results of other authors on higher CN-concentrations are interpreted by an orientational glass behaviour. A semiquantitative description is given in terms of the mean random field approximation.
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This research was supported by the Bundesministerium für Forschung und Technologie of West-Germany
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Loidl, A., Feile, R. & Knorr, K. Orientational glass behaviour of K Br0.96(CN)0.04 . Z. Physik B - Condensed Matter 42, 143–149 (1981). https://doi.org/10.1007/BF01319548
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DOI: https://doi.org/10.1007/BF01319548