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Elastic, Dielectric, and Photoelastic Constants of Alkali Halide Crystals
Author(s) -
Hans D.,
Sangachin A. A. S.,
Kumar M.
Publication year - 1988
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.2221470209
Subject(s) - halide , dielectric , alkali metal , range (aeronautics) , materials science , dispersion (optics) , thermodynamics , work (physics) , force constant , condensed matter physics , chemistry , optics , physics , inorganic chemistry , composite material , molecule , organic chemistry , optoelectronics
The interionic potential model recently developed by taking account of the composite effect of short range repulsive and dispersion forces along with three body interactions is extended in the present work to calculate the (i) third and fourth order elastic constants, (ii) first and second order pressure derivatives of second order elastic constants, (iii) photoelastic constants, volume derivatives of dielectric constants, and optic mode Grüneisen parameters. The calculated values of various physical quantities are found to present close agreement with experimental data.