Magnetoacoustic Oscillations and the Fermi Surface in Aluminum

Publisher Website
Google Scholar
Abstract
Measurements of magnetoacoustic attenuation in very pure aluminum have been made with 10 to 100 Mc/sec longitudinal sound waves in magnetic fields up to 9200 oe. at a temperature of 4.2°K. The observed oscillations, or geometric resonances, for various crystal and field orientations may be interpreted utilizing the second zone of the nearly free electron Fermi surface model proposed by Harrison. The data suggest regions of high scattering near [100] portions of the surface that prevent the observation of periods for some orbit configurations.