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Study of metglas 2605 CO by extended and near edge X-ray absorption fine structure |
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| Authors: | Guy H Hayes Joseph I Budnick Douglas M Pease William A Hines Myung H Choi Steve M Heald Dale E Sayers |
| Institution: | Research Directorate, Perkin Elmer Corporation, Danbury, CT 06810, USA Department of Physics and Institute of Materials Science, University of Connecticut, Storrs, CT 06268, USA Department of Physics, Catholic University Medical College, Seoul, Korea Brookhaven National Laboratory, Upton, NY 11973, USA Department of Physics, North Carolina State University, Raleigh, NC 27607, USA |
| Abstract: | Extended X-ray absorption fine structure (EXAFS) and X-ray absorption near edge structure (XANES) studies of the transition metal sites in Metglas 2605 CO (Fe67Co18B14Si1) illustrate differences in the two sites. The average transition metal distance, obtained by standard EXAFS analysis, is larger for iron than for cobalt sites in this material. The XANES for Co and Fe are nearly identical except for a shift of the Co fine structure to high energy relative to that of Fe; the sign and magnitude of this shift is commensurate with the EXAFS results. Finally, there was no detected polarization dependence of the EXAFS, indicating that the structural manifestations of the magnetic anisotropy in this material are smaller than the detection limits of these experiments. |
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