Dynamics of Disordered Harmonic Lattices. III. Normal-Mode Spectra for Abnormal Arrays
- 15 November 1968
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 175 (3), 1201-1207
- https://doi.org/10.1103/physrev.175.1201
Abstract
In this final paper in our series on the vibrations of disordered harmonic lattices, we display and discuss the normal-mode spectra for systems other than the binary isotopically disordered systems with which our two preceding papers were concerned. The effects of continuous random mass and force-constant distributions and short-range order are studied. Frequency spectra for mixed alkali-halide lattices, ternary disordered linear chains, and simple cubic lattices have been calculated. The results are exhibited as histograms for the frequency spectra.Keywords
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