Anharmonic Decay of Vibrational States in Amorphous Silicon
- 28 October 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 77 (18), 3839-3842
- https://doi.org/10.1103/physrevlett.77.3839
Abstract
Anharmonic decay rates are calculated for a realistic atomic model of amorphous silicon. The results show that the vibrational states decay on picosecond time scales and their decay rates increase with increasing frequency. These results disagree with a recent experiment. In contrast to predictions of the fracton model, we find no evidence that the anharmonic decay is inhibited in the region of localized states.This publication has 23 references indexed in Scilit:
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