Magnetic dichroism effect of binary alloys using a circularly polarized x ray
- Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802 (United States)
- Department of Chemistry and Material Science, Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)
- Stanford Linear Accelerator Center, Stanford Synchrotron Radiation Laboratory, Stanford University, Stanford, California 94309 (United States)
We have studied the magnetic properties of CoNi binary alloy films with various atomic compositions using the soft x-ray magnetic circular dichroism technique. The alloy films were deposited on a single Cu(100) crystal {ital in situ} using our well established epitaxial growth technique to achieve a layer-by-layer growth and a metastable face-centered-cubic structure, with all the films exhibiting an in-plane magnetic anisotropy. The high density, circularly polarized x-ray beam was supplied by the elliptically polarizing undulator at the Stanford Synchrotron Radiation Laboratory. Utilizing the element-specific ability and nanostructure magnetization sensitivity of this technique, we were able to perform the absorption measurements at L{sub 2} and L{sub 3} edges of Co and Ni atoms and we observed large dichroism signals. The extraction of spin moment and orbital moment for varying elemental stoichiometry using magneo-optical sum rules is discussed. {copyright} {ital 1997 American Vacuum Society.}
- OSTI ID:
- 531759
- Journal Information:
- Journal of Vacuum Science and Technology, A, Vol. 15, Issue 4; Other Information: PBD: Jul 1997
- Country of Publication:
- United States
- Language:
- English
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