Frequency Dependence of the Orientational Freezing in(KBr)1−x(KCN)x

Abstract

Dielectric, ultrasonic, and neutron-scattering measurements in ${\left(\mathrm{KBr}\right)}_{1-x}{\left(\mathrm{KCN}\right)}_x$ are reported for concentrations $x$ ranging from 0.01 to 0.5. The dipolar and the quadrupolar susceptibilities exhibit frequency- and concentration-dependent cusps showing that the freezing process into an orientational glass state is a relaxational phenomenon.