Effective ionic charge in relation to lattice vibrations
- 1 January 1961
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 6 (61) , 27-35
- https://doi.org/10.1080/14786436108238350
Abstract
A discussion is given of the assumptions involved in recent theories of the dielectric constants of the alkali halide crystals with particular reference to the contributions arising from short-range polarization effects. A theory is developed on a semi-empirical basis which makes it possible to divide this effect unambiguously between the positive and negative ions. This theory is consistent with the experimental data and should provide a means of including this effect in calculations on the lattice dynamics of these crystals.Keywords
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