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Analysis of the equation of state of lithium and sodium halides
Author(s) -
Shanker J.,
Singh K.
Publication year - 1983
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221150207
Subject(s) - equation of state , halide , lithium (medication) , van der waals force , dipole , chemistry , quadrupole , range (aeronautics) , sodium , thermodynamics , atomic physics , physics , materials science , inorganic chemistry , molecule , medicine , organic chemistry , composite material , endocrinology
A theoretical analysis of the equation of state is performed for the halides of lithium and sodium. The variation of volume with pressure is calculated using seven different potential functions for the short‐range overlap repulsive energy. The van der Waals dipole‐dipole and dipole‐quadrupole interactions derived from thevariational method are taken into account. The results obtained are compared with available experimental data. In most of the crystals studied, the Varshni‐Shukla exponential potential for the repulsive energy gives the best agreement with experimental data for the equation of state.