Elastic Constants of Zinc from 4.2°K to 77.6°K

Abstract

The adiabatic elastic constants of zinc single crystals have been measured by an ultrasonic pulse technique. The values extrapolated to 0°K are: $c_{11}=1.770\mathrm{}$, $c_{33}=0.685\mathrm{}$, $c_{44}=0.459\mathrm{}$, $c_{12}=0.348\mathrm{}$, $c_{13}=0.528\mathrm{}$ in units of ${10}^{12}$ dynes/${\mathrm{cm}}^2$. A Debye characteristic temperature, $\theta$, of 327°±5°K has been calculated at 0°K by averaging the inverse cube of the longitudinal and transverse elastic wave velocities over all directions of propagation.