Lattice Dynamics of Zinc

Abstract

A tensor force model including up to sixth‐neighbour interactions is developed for zinc. The model involves a total of twenty‐three force constants of which eighteen are determined from certain room temperature experimental elastic constants. The condition for crystal equilibrium which interrelates the force constants is also satisfied, so that the model is elastically consistent. The other five constants are not determined. The theoretical dispersion curves involving only the eighteen force constants determined are computed and compared with the experimental neutron scattering results of Borgonovi et al. Good agreement is found. The theoretical results of De Wames et al. are also discussed. Copyright © 1966 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim