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Temperature dependence of hyperfine magnetic fields in Fe-Co alloys

Hamdeh, H. H. and Okamoto, J. and Fultz, B. (1990) Temperature dependence of hyperfine magnetic fields in Fe-Co alloys. Physical Review B, 42 (10). pp. 6694-6696. ISSN 0163-1829. http://resolver.caltech.edu/CaltechAUTHORS:HAMprb90

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Abstract

A Mössbauer spectrometry study of bcc Fe-Co alloys was performed to measure the 57Fe hyperfine-field parameters from 77 to 900 K. The temperature dependence of the 57Fe hyperfine magnetic field in Fe-Co alloys was similar, although not identical, to that of 57Fe in pure Fe. These results are understood if the alignment of magnetic moments at Fe atoms is only slightly more temperature dependent than at Co atoms. This situation for Fe-Co is significantly different from that of Fe-Ni alloys, indicating that the interatomic exchange interactions in Fe-Co alloys are stronger than in Fe-Ni.


Item Type:Article
Additional Information:©1990 The American Physical Society Received 26 April 1990 This work was supported by the U.S. Department of Energy under Grant No. DE-FG03-86ER45270.
Record Number:CaltechAUTHORS:HAMprb90
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:HAMprb90
Alternative URL:http://dx.doi.org/10.1103/PhysRevB.42.6694
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:6079
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:16 Nov 2006
Last Modified:26 Dec 2012 09:17

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