Pressure derivatives of bulk and shear modulus of rare gas solids Original Research Article

Expressions for the isothermal bulk and shear modulus and also their first and second order pressure derivatives for rare gas solids are derived by a simple method considering the different interactions i.e. modified variable induce dipoles, short range overlap repulsion and the vibrational contribution. The derived relations for dKT/dP, dCS/dP, dC′44/dP, d2KT/dP2, d2CS/dP2 and d2C′44/dP2 are used to compute the numerical values of these constants at P=0 for Ne, Ar, Kr and Xe.