1987
DOI: 10.1002/pssb.2221400108
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Interrelationship between higher‐order elastic constants and pressure derivatives of dielectric constants for ionic crystals

Abstract: An interrelationship between the pressure derivatives of dielectric 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 uti… Show more

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Cited by 7 publications
(1 citation statement)
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“…Moreover, it does not require the detailed knowledge of interionic potentials for evaluating the volume derivatives of the short-range force constant. Srivastava et al [7] have obtained these derivatives from the knowledge of third-and fourth-order elastic constants. It is interesting to mention here that the values of ( V I A ) (dA/dV) and P2/A(d2A/dV2) obtained by them [7] present fairly good agreement with the corresponding values given by (11) and (12).…”
Section: Resultsmentioning
confidence: 99%
“…Moreover, it does not require the detailed knowledge of interionic potentials for evaluating the volume derivatives of the short-range force constant. Srivastava et al [7] have obtained these derivatives from the knowledge of third-and fourth-order elastic constants. It is interesting to mention here that the values of ( V I A ) (dA/dV) and P2/A(d2A/dV2) obtained by them [7] present fairly good agreement with the corresponding values given by (11) and (12).…”
Section: Resultsmentioning
confidence: 99%