Magnetic Properties of Liquid Pd, Si, and Pd-Si Alloys

Abstract

The magnetic susceptibility $\chi$ of liquid Pd, Si, and Pd-Si alloys was measured. For crystalline semiconducting Si, $\chi$ changes at the melting point $T_M$ from diamagnetic to paramagnetic values in good agreement with existing theoretical calculations for the liquid state. For liquid Pd, $\chi$ is discussed within the Stoner-Wohlfarth and Edwards models. The data obtained for liquid Pd-Si alloys provide an understanding of the diamagnetism of the metallic glass ${\mathrm{Pd}}_{81}$ ${\mathrm{Si}}_{19}$ and will be discussed in the light of recent density-of-states data obtained by photoemission.