On the anomalous temperature-dependent magnetostriction in intermetallic DyFe2
Bowden, G. J., De Groot,, P. A. J., O'Neil, J. D., Rainford, B. D. and Zhukov, A.A. (2004) On the anomalous temperature-dependent magnetostriction in intermetallic DyFe2. Journal of Physics-Condensed Matter, 16, (13), 2437-2446. (doi: 10.1088/0953-8984/16/13/021).
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The anomalous temperature dependence of the magnetostriction in single-crystal DyFe2 has been an unsolved problem in magnetism for some 27 years. In this paper, it is shown that an explanation can be provided, within the constraints of the Callen and Callen model, provided changes in the second-, fourth- and sixth-order crystal field energies of the rare earth ion are all taken into account. In particular, it is shown that the peculiar temperature dependence of the magnetostriction in DyFe2 is due to competition between n = 2, 4 and 6 crystal field distortions, whose temperature dependence can be accurately modelled using the Callen and Callen model.
|Subjects:||Q Science > QC Physics|
|Divisions:||University Structure - Pre August 2011 > School of Physics and Astronomy
|Date Deposited:||14 Aug 2008|
|Last Modified:||27 Mar 2014 18:39|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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