Abstract
The results of a de Haas-van Alphen study of the changes in the Mg Fermi surface in dilute MgLi and MgIn alloys are presented. The smaller Fermi-surface cross sections are studied by modulation techniques in fields up to 60 kG and by torque methods in fields up to 36 kG. Scattering temperatures were obtained for several cross sections in each alloy with typical values of 9\ifmmode^\circ\else\textdegree\fi{}K per at.% Li and 21\ifmmode^\circ\else\textdegree\fi{}K per at.% In. A method of correcting for inhomogeneities in sample concentration involving self-consistent analysis of de Haas-van Alphen amplitudes and frequencies is presented and illustrated for the highest-concentration MgLi alloy. The relative contributions of magnetic breakdown to cigar and trifoliate orbits are discussed.
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