Anomalous low-temperature thermal properties of glasses and spin glasses

Abstract

Wo show that a linear specific heat at low temperatures for glass follows naturally from general considerations on the glassy state. From the same considerations we obtain the experimentally observed anomalous low- temperaturc thermal conductivity, and we predict an ultrasonic attenuation which increases at low temperatures. Possible relationships with the linear specific heat in magnetic impurity systoms are pointed out. We suggest experimental study of the relaxation of thermal and other properties. © 1972, Taylor & Francis Group, LLC. All rights reserved.