
%0 Journal Article
%A Pandey, Sadhana 
%A Trikha, SK 
%T Molecular Dynamics of the Phase Transition in Compressible Ammonium Chloride
%J Australian Journal of Physics
%D 1984/12/01
%V 37
%N 6
%P 667-674
%K 
%R https://doi.org/10.1071/PH840667
%U https://www.publish.csiro.au/paper/PH840667 
%X The effects of pressure on the dynamical behaviour of an NH: ion near the A transition under the influence of its nearest neighbours in ammonium chloride have been studied by using the computer simulation technique. The Lennard Jones (6-12) potential is used as the representative interaction between NH: and Cl-. The present calculations reveal a decrease in entropy of the system with increasing pressure. The libration frequency of the NH: ion is estimated to be approximately 170, 182 and 210 cm -1 at pressures of 1 atm, 3 and 10 kbar respectively, in agreement with the Raman spectrum study of NH4CI at high pressure (Ebisuzaki and Nicol 1969). 
