AVS 52nd International Symposium
    Magnetic Interfaces and Nanostructures Wednesday Sessions
       Session MI-WeM

Paper MI-WeM7
Evolution of (Surface) Magnetic Moment and Magnetic Ordering Behavior in Epitaxial Transition Metal Films

Wednesday, November 2, 2005, 10:20 am, Room 204

Session: Magnetic Imaging and Spectroscopies
Presenter: K.R. Podolak, The Pennsylvania State University
Authors: K.R. Podolak, The Pennsylvania State University
N. Janke-Gilman, Latrobe University, Australia
R.F. Willis, The Pennsylvania State University
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We report dichroism in angle-resolved x-ray photoemission with linearly polarized synchrotron radiation of the 3p core levels of the ferromagnetic elements Fe, Ni, Co, and their binary alloys.@footnote 1@ A systematic study of the spectral width (W) and the dichroism asymmetry amplitude (A) distinguishes the magnitudes of the elemental moments from the overall saturization magnetization. The Slater-Pauling curve is shown to be a plot of the stoichiometric mean saturization magnetization per atom. The spectral width (W) increases with increasing ferromagnetism. The dichroism asymmetry amplitude (A) senses the onset of disorder, instabilities, and changes in the magnetic anisotropy. These new measurements provide a new insight into the magnetic order in these thin film alloys and surface moment enhancement. @FootnoteText@ @footnote 1@ R.F. Willis and N. Janke-Gilman. Europhys. Lett., 69, 411 (2005).