Elastic Constants of Cadmium from 4.2°K to 300°K

Abstract

The adiabatic elastic constants of cadmium single crystals have been measured by an ultrasonic pulse technique. The values extrapolated to 0°K are: $c_{11}=13.08\mathrm{}$, $c_{33}=5.737\mathrm{}$, $c_{44}=2.449\mathrm{}$, $c_{12}=4.048\mathrm{}$, $c_{13}=4.145\mathrm{}$ in units of ${10}^{11}$ dynes/${\mathrm{cm}}^2$. A Debye characteristic temperature, ${\theta }_0$, of 213°±1°K has been calculated from these 0°K elastic constants. The temperature dependence of the linear compressibilities, $K_{\mathrm{II}}$ and $K_{\perp }$, has also been calculated.