Origin of Hypersonic Attenuation in Germanium at Low Temperatures
- 15 January 1961
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 121 (2) , 396
- https://doi.org/10.1103/physrev.121.396
Abstract
Hypersonic attenuation in germanium at different temperatures is calculated and compared with the recent low-temperature measurements by Truell and his associates. The excellent agreement between the theory and experiment for the temperature dependence shows that Umklapp processes are responsible for the attenuation at low temperatures.Keywords
This publication has 6 references indexed in Scilit:
- Excitation and Attenuation of Hypersonic Waves in QuartzPhysical Review B, 1960
- Attenuation of Sound in a Germanium Crystal at Ultra-High Frequencies and Low TemperaturesPhysical Review Letters, 1959
- Attenuation of Hypersonic Waves in QuartzPhysical Review Letters, 1959
- Elastic Constants of Germanium between 1.7° and 80°KJournal of Applied Physics, 1955
- The Thermal Conductivity of Germanium and Silicon at Low TemperaturesProceedings of the Physical Society. Section A, 1954
- XXV. The specific heats of germanium and grey tin at low temperaturesJournal of Computers in Education, 1952