Article

Surface acoustic waves and the temperature dependence of the relaxation time in gallium

L. T. PisarevPhysicotechnical Institute, Academy of Sciences of the Ukrainian SSR , DonetskA. I. PopovichPhysicotechnical Institute, Academy of Sciences of the Ukrainian SSR , Donetsk

Soviet Journal of Low Temperature Physicsjournal1983en

ABI

Abstract

The attenuation of surface acoustic waves in gallium in high magnetic fields has been studied. A method for studying the temperature dependence of the carrier mean free path is proposed. It was established that the temperature dependent part of the collision frequency in gallium is proportional to T2 up to T = 8.5 °K. A logarithmic dependence of surface wave attenuation on mean free path was found in a magnetic field perpendicular to the plane in which the sound propagates.

Topics

Ultrasonics and Acoustic Wave Propagation Acoustic Wave Resonator Technologies Thermography and Photoacoustic Techniques

Identifiers

DOI: 10.1063/10.0031023

Citations and references

Cited by 02 references

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