Study of the de Haas—van Alphen Effect in Dilute Aluminum-Based Alloys

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Abstract
The de Haas-van Alphen effect has been studied in dilute alloys (up to 1 at.%) of Zn, Si, Ge, Mg, and Ag in aluminum. Three sets of oscillations, similar to those observed in pure Al arising from the third-zone Fermi surface, have been seen in most of the alloys. The periods of the oscillations are in general different from those of pure Al. These changes have been compared with the detailed predictions of the rigid-band model, and excellent agreement is found. In addition, the effective masses associated with the oscillations are found to be unchanged from those of pure Al. The Dingle temperatures, and hence relaxation times, for the electrons on the third-zone surface have been measured, and the scattering is found to be isotropic within the experimental error.

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