Acoustic Attenuation in Aluminum due to Electron-Lattice Interaction

Edward Lax
Phys. Rev. 115, 1591 – Published 15 September 1959
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Abstract

The attenuation of sound due to the interaction of electrons with the lattice has been measured in pure polycrystalline aluminum at low temperatures. Measurements from 26 to 130 kc/sec, obtained by recording the decays of the harmonics of a longitudinally resonating bar, were compared with the electrical conductivity of an aluminum wire of identical purity, over a temperature range of 3° to 70°K. The attenuation was proportional to the square of the frequency. A detailed agreement between the shape of the attenuation and conductivity curves was obtained, but the experimental attenuation was 50% greater than could be explained by the present theory.

  • Received 22 April 1959

DOI:https://doi.org/10.1103/PhysRev.115.1591

©1959 American Physical Society

Authors & Affiliations

Edward Lax

  • Department of Physics, University of California, Los Angeles, California

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Issue

Vol. 115, Iss. 6 — September 1959

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