Acoustic modes in random and correlated binary alloys
- 30 April 1980
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 13 (12) , 2269-2279
- https://doi.org/10.1088/0022-3719/13/12/010
Abstract
The dynamics of a binary alloy vibrational system of simple cubic (monotonic) structure with both mass and force constant disorder (algebraic, degenerate, nearest neighbour) is studied in terms of the configurationally averaged lattice Green function. In the random alloy case, the CPA subseries has been summed. A similar subseries is summed in the correlated alloy case and the self-energy is expressed in terms of pair correlations.Keywords
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