FERMI-SURFACE OF PD2SI

A Fermi-surface study of palladium disilicide is presented. Experiment ally, the Fermi surface and the cyclotron effective masses have been s tudied using the de Haas-van Alphen (dHvA) effect. Theoretically, the band structure of Pd2Si has been calculated using the linear-muffin-ti n-orbital method in the atomic-sphere approximation. The Fermi surface consists of three small hole pockets, an open hole surface, and two l arge electron sheets. The calculated angular dependence of the extrema l cross sections of the Fermi surface is in reasonable agreement with dHvA experiments. Some additional dHvA oscillations are predicted.