Lattice Vibrations and Interatomic Force
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Prof. Dr. H. Neumann
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Article
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1993
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John Wiley and Sons
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English
⚖ 639 KB
## Abstract A simplified version of the Keating model originally derived for defect‐chalcopyrite compounds is extended to include all A^II^B~2~^III^C~4~^VI^ compounds with ordered arrays of vacancies. It is shown that the trends and frequencies of the nonpolar optical modes of these compounds can b