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The Exchange Charge Shell Model Analysis of Strain Derivatives of Static Polarizability and Effective Charge Parameter of Alkali Halides
Author(s) -
Jain V. C.,
Shanker J.
Publication year - 1978
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.2220890127
Subject(s) - polarizability , halide , alkali metal , hydrostatic pressure , shell model , shell (structure) , polarization (electrochemistry) , charge (physics) , hydrostatic equilibrium , chemistry , materials science , thermodynamics , molecular physics , atomic physics , physics , inorganic chemistry , quantum mechanics , composite material , organic chemistry , molecule
Abstract An analysis of the strain derivatives of static polarizability and effective charge parameter of alkali halides under hydrostatic pressure is performed within the framework of the exchange charge shell model. Details of the model. Details of the model and relevant theoretical expressions are given. The magnitudes of exchange charge polarization and its volume dependence are evaluated from the overlap integrals recently computed by Hafemeister and Flygare. It is found that the inclusion of the exchange charge polarization in the formulation of the shell model improves significantly the agreement between theory and experiment.