ELECTRONIC STATES AND FERMI-SURFACE PROPERTIES OF ALPHA-PHASE PDHX

Calculations based on a muffin tin model for the electronic structure of the random interstitial alloy PdHx are presented together with the first high resolution de Haas-van Alphen data for this system in the α-phase. In the dilute limit good agreement is obtained for the concentration dependence of the areas of several extremal orbits. The behavior of the PdHx Fermi surface is unique in that the Γ-centered electron orbits are found to grow at approximately the rate predicted by the rigid band model while the X-centered hole pockets shrink at only half the rigid band rate. © 1979.