
%0 Journal Article
%A Srivastava, SP 
%T Infrared Active Two?Phonon Processes in Cubic ZnS
%J Australian Journal of Physics
%D 1973/02/01
%V 26
%N 1
%P 111-114
%K 
%R https://doi.org/10.1071/PH730111
%U https://www.publish.csiro.au/paper/PH730111 
%X Results are presented of a study of the infrared transmission spectrum of cubic ZnS at room temperature. Besides the fundamental lattice absorption, a number of subsidiary bands due to the interaction of infrared radiation with more than one lattice phonon in the frequency range 250-800 cm - 1 have been observed. These multiphonon bands are explained using inelastic neutron scattering data for the four characteristic phonon frequencies at various critical points and applying selection rules. 
