Abstract
The deformation contribution to the electronic attenuation of ultrasonic shear waves in aluminum is measured to be of the same order of magnitude as for longitudinal waves. This real metal effect is found highly anisotropic, depending both on the directionq/q and the polarization ε of the ultrasound. An anisotropic deformation parameterK y is therefore suggested as being large whenever ε is close to the edgeWK of the Fermi surface.
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Berre, B., Gabestad, H.K. Deformation attenuation of ultrasonic shear waves in aluminum. J Low Temp Phys 21, 97–108 (1975). https://doi.org/10.1007/BF01141292
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DOI: https://doi.org/10.1007/BF01141292