Abstract
Calculations are made to determine the contribution of Lorentz-field and Coulomb-field anisotropy in alkali-halide crystals to the photoelastic coefficients p11–p12 and p44 as well as to the piezopolarizability constants K, K′, Kx, Kz, and K0. These calculations are based on Mueller's theory of the photoelastic effect, with data on iron polarizability and photoelastic coefficients. The applicability of Mueller' s theory to the complete series of alkali-halide crystals is analyzed. Criteria are established for the ionicity of bonds in these crystals.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 12, pp. 28–34, December, 1975.
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Pakhnev, A.V., Shaskol'skaya, M.P. & Gorbach, S.S. Calculation of the components of the photoelastic effect in alkali-halide crystals. Soviet Physics Journal 18, 1662–1667 (1975). https://doi.org/10.1007/BF00892782
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DOI: https://doi.org/10.1007/BF00892782