De Haas-van Alphen effect and fermi surface of the intermetallic compounds AuAl2, AuGa2and AuIn2

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Abstract
The de Haas-van Alphen effect has been measured in the three intermetallic compounds AuAl2, AuGa2 and AuIn2 (fluorite structure), by the pulsed field method and by the torque method. The agreement between experimental results and Fermi surface derived from the free-electron model, assuming seven conduction electrons per primitive cell, is generally not too bad, suggesting that this model is valid as a first approximation for interpreting the experimental results. Similarities and differences between the three compounds are discussed.