de Haas-van Alphen Effect in LaGa2

The Fermi surface of the hexagonal compound LaGa 2 is studied using the de Haas-van Alphen (dHvA) effect. The observed results are compared with the LAPW band calculations published by Hariama and Yanase. The observed variations of the dHvA frequencies as a function of the magnetic field orientation are well explained by the calculated results. The factor for electron mass enhancement due to electron-phonon interaction is estimated to be 2 from the measured and calculated cyclotron masses.

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