Calculations of Dispersion Curves and Specific Heat for LiF and NaCl Using the Breathing Shell Model
- 1 January 1967
- journal article
- research article
- Published by Wiley in Physica Status Solidi (b)
- Vol. 21 (1) , 309-314
- https://doi.org/10.1002/pssb.19670210131
Abstract
The model for the lattice dynamics of alkali halides as given in a previous paper is generalized to include the case in which both ions are polarizable. Dispersion curves and density of states are calculated for LiF and NaCl at 0 °K. The Debye characteristic temperatures ΘD(T) for 0 °K and 300 °K are computed for these crystals, and good agreement with experimental values is obtained.Keywords
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