Interaction between Thermal Phonons and Dislocations in LiF
- 15 April 1972
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 5 (8), 3199-3210
- https://doi.org/10.1103/physrevb.5.3199
Abstract
Thermal conductivity measurements on deformed LiF crystals from 0.04 to 0.8 K have indicated a strong polarization- and frequency-dependent dynamic scattering of thermal phonons by mobile dislocations. Heat-pulse experiments at 3.6 K have verified both the strength and polarization dependence of the scattering mechanism. The scattering of thermal phonons by sessile dislocations was too weak to be detected.Keywords
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