Thermal Conductivity of Glasses: Theory and Application to Amorphous Si
- 6 February 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 62 (6) , 645-648
- https://doi.org/10.1103/physrevlett.62.645
Abstract
Vibrations of amorphous Si are represented by the network model of Wooten, Winer, and Weaire and the forces of Stillinger and Weber. It is shown how the Kubo formula for thermal conductivity can be evaluated "exactly" assuming harmonic vibrations, making only finite-system-size errors. The results support a "shunt-resistor model" which fits data for glasses very well.Keywords
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