Decay of High-Frequency Longitudinal Phonons
- 1 November 1967
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 38 (12) , 4573-4576
- https://doi.org/10.1063/1.1709187
Abstract
The anharmonic decay of a high‐frequency longitudinal elastic wave at low temperatures, such that ℏω> KT, is calculated by perturbation theory, using a Grüneisen parameter as measure of the anharmonicity. The attenuation at very low temperatures varies as the fifth power of frequency, and is small at frequencies below 1012 Hz.This publication has 4 references indexed in Scilit:
- Generation and Detection of Coherent Elastic Waves at 114,000 Mc/secScience, 1966
- TEMPERATURE DEPENDENCE OF ATTENUATION OF 70-Gc/sec ACOUSTIC WAVES IN QUARTZApplied Physics Letters, 1964
- On the mean free path of low energy phonons in single crystal quartzPhilosophical Magazine, 1964
- Thermal Conductivity and Lattice Vibrational ModesPublished by Elsevier ,1958