Abstract
ABSTRACTThe pressure induced phase transition in samarium sulphide is studied by realistic interaction potential model (RIPM) including temperature effects and is consists of coulomb interaction, three body interaction and short range overlap repulsive interaction up to first neighbour. It is found that SmS undergo a structural phase transition from NaCl (B1) type to CsCl (B2) type at 41.92 GPa at 0 K and 38.5 GPa at 300 K respectively. We have also found the second order elastic constants and brittleness of present compound. Our results are in good agreement with the experimental data.
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