Fermi surface nesting in disordered Cu1-xPdx alloys - art. no. 216401

The concentration-dependent position of the diffuse peaks in electron and x -ray diffraction patterns of Cu1-xPdx alloys in the disordered state is att ributed to Fermi surface nesting. We present the first experimentally deter mined Fermi surfaces of Cu0.72Pd0.28 and Cu0.6Pd0.4, and show that they do indeed possess significant flat areas capable of nesting, Moreover, the mag nitudes of the nesting vectors axe in excellent agreement with those deduce d from electronic structure calculations and diffraction experiments.