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Uniaxial Stress Dependence of the Static Dielectric Constant of Some Alkali Halides

✍ Scribed by M. Barth; W. Lorke; E. Mohler

Publisher
John Wiley and Sons
Year
1985
Tongue
English
Weight
555 KB
Volume
130
Category
Article
ISSN
0370-1972

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✦ Synopsis

Abstract

A sensitive method to measure the strain derivatives of the static dielectric constant of uniaxially stressed crystals is described. With stress modulation and phase‐sensitive detection, changes as small as 5 Γ— 10^βˆ’7^ of the sample's capacitance can be detected. The piezodielectric and electrostrictive tensor components of LiF, NaCl, and KCl are given. The experimental results are compared with theoretical estimates of these coefficients based on lattice dynamical models.

πŸ“œ SIMILAR VOLUMES

Evaluation of Photoelastic Constants and
Evaluation of Photoelastic Constants and Strain Derivatives of the Static Dielectric Constant of Silver and Thallium Halides
✍ T. S. Verma; V. Kumar; J. Shanker πŸ“‚ Article πŸ“… 1984 πŸ› John Wiley and Sons 🌐 English βš– 281 KB

## Abstract A method for calculating the photoelastic constants and strain derivatives of static dielectric constant for silver and thallium halide crystals, which crystallize in NaCl and CsCl structures, respectively, is developed. The shell model formulation, which takes into account the polariza