Premium
Interrelationship between higher‐order elastic constants and pressure derivatives of dielectric constants for ionic crystals
Author(s) -
Srivastava G. M. S.,
Sinha R. K.,
Shanker J.
Publication year - 1987
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.2221400108
Subject(s) - dielectric , halide , thermodynamics , work (physics) , bulk modulus , constant (computer programming) , order (exchange) , alkali metal , ionic crystal , materials science , ionic bonding , modulus , computational chemistry , chemistry , inorganic chemistry , organic chemistry , physics , composite material , ion , optoelectronics , finance , computer science , economics , programming language
An interrelationship between the pressure derivatives constants and higher‐order elastic constants is investigated. Some useful relations connecting the first‐ and second‐order pressure derivatives of dielectric constants, third‐ and fourth‐order elastic constants, and bulk modulus and its pressure derivatives are obtained. A numerical application of these relations in the case of alkali halide crystals yields results which are found to be in good agreement with available experimental data. The utility of the mathematical expressions reported in the present work is demonstrated by calculating the pressure derivatives of dielectric constants.