eng Science and Education Publishing International Journal of Physics 2333-4576 2016-11-28 4 6 152 157 10.12691/ijp-4-6-2 IJP2016462 article Pandey Suresh Chandra 1 Dubey Jay Prakash jpdubebl@yahoo.com 2 Upadhyaya Kripa Shankar 3 Department of Physics, Mahatma Ghandhi Gramodaya Vishwavidyalaya, Chitrakoot, Satna M. P., India Department of Physics, Dr. K. N. Modi University, Newai, Rajasthan, India Department of Physics, Nehru Gram Bharati University, Allahabad, U. P., India A theoretical study of InSb based on the effect of van der Waal's interactions (VDWI) and three-body interactions (TBI) into the rigid shell model (RSM) of zinc blende structure (ZBS). The van der Waal's three body shell model (VTSM) is performed to analyze the phonon dispersion curves, Debye temperatures variation, combined density of states (CDS) curves, two-phonon Raman and anharmonic elastic properties, where the short range interactions are operative upto the second neighbours. Our results are reasonably good agreement observed between theoretical and experimental data. http://pubs.sciepub.com/ijp/4/6/2/ijp-4-6-2.pdf phonons van der Waal's interactions debye temperature variation combined density of states curve phonon dispersion curves lattice dynamics