Electronic structure of epitaxial NixPd1-x alloy films on Cu3Au(100)
Journal
Journal of Applied Physics
Journal Volume
89
Pages
6892-6894
Date Issued
2001
Author(s)
Abstract
We studied epitaxially grown single-crystalline chemically disordered ultrathin NixPd1-x alloy films on Cu3Au(100) by means of photoemission using magnetic circular dichroism in the angular distribution. We clearly observe a well-defined three-dimensional band dispersion in 15 monolayer films. On the basis of relativistic selection rules, this dispersion can be related to specific electronic states. Since the spin-orbit coupling (ΔEso) is smaller for Ni than for Pd, the alloy will assume an average value. We find that this average spin-orbit coupling clearly shows up in the electronic structure and correlates directly to the composition of the NiPd alloy film. The results are discussed in terms of a simple qualitative model. © 2001 American Institute of Physics.
Type
journal article