Abstract
We have studied the local magnetic states of a single-crystalline Fe film, annealed and as-deposited Fe-Pt alloy films, and an Fe/Pt multilayer by magnetic circular dichroism (MCD) in core-level absorption. The MCD spectra around the Fe edges unambiguously reveal an enhanced 3d orbital moment in the alloys and multilayer relative to that in Fe metal. MCD signals were also observed at the Pt and edges in the alloys and multilayer, showing induced magnetic moments on Pt atoms. A comparison of the MCD spectral pattern at the Pt edges with that at the Fe and Pt edges gives clear evidence that the induced Pt moments are aligned parallel to the Fe moments. Fine MCD features observed at the Pt edges indicate that the Pt 5d partial density of states just above the Fermi level is higher for the majority-spin states than for the minority-spin states. © 1996 The American Physical Society.
- Received 5 June 1995
DOI:https://doi.org/10.1103/PhysRevB.53.8219
©1996 American Physical Society