X ray dichroism and Faraday effect studies in ordered and disordered Fe3Pt
Abstract
The magnetic properties of Fe3Pt compound depend on the degree of disorder present in the system. We have compared a cold rolled, disordered sample with a heat treated, ordered sample using circularly polarized synchrotron radiation at the FeK (7112 eV) and at the PtL3 (11564 eV) absorption edge, as well as by Mossbauer Spectroscopy, and x ray diffraction. Fe-K edge dichroism is compared to the measurements of Faraday rotation using linearly polarized radiation. We found that the magnetic dichroism at the PtL3 edge is reduced when the disordered Fe3Pt is heat treated and ordered. We also report that it is easier to measure Faraday rotation at the K-edges of transition metals than the magnetic dichroism.
- Publication:
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Presented at the 4th International Conference on Synchrotron Radiation Instrumentation
- Pub Date:
- July 1991
- Bibcode:
- 1991sri..conf...15A
- Keywords:
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- Dichroism;
- Faraday Effect;
- Iron Alloys;
- Order-Disorder Transformations;
- Platinum Alloys;
- Absorption Spectroscopy;
- Magnetic Properties;
- Phase Transformations;
- X Ray Spectroscopy;
- Solid-State Physics