Elastic Constants of Indium Antimonide from 4.2°K to 300°K

The adiabatic elastic constants of a single crystal of indium antimonide have been measured by an ultrasonic pulse technique in which 10-Mc/sec acoustic waves were employed. The elastic constants extrapolated to 0°K are, in units of ${10}^{12}$ dynes/${\mathrm{cm}}^2$, $c_{11}=0.6918\mathrm{}$, $c_{12}=0.3788\mathrm{}$, and $c_{44}=0.3132\mathrm{}$. A Debye characteristic temperature, $\theta$, of 205°±2°K at 0°K was calculated from these values of the elastic constants.