Abstract
The attenuation of longitudinal soundwaves in normal and superconducting aluminum has been measured, yielding the electronic contribution to the normal state attenuation. The electron-phonon interaction constant is found to be in good agreement with the calculated constant based on Pippard's theory. The experiments support our assumption of an isotropic deformation parameterKx, using Segall's and Ashcroft's modifications of the Harrison model of the Fermi surface.
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