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XMCD study of the magnetic behavior of R(Al1−xFex)2 compounds

AuthorsLaguna-Marco, M. A.; Chaboy, Jesús; Piquer, Cristina; Maruyama, H.; Kawamura, N.; Takagaki, M.
Intermetallic rare earth-transition metal compound
Issue DateSep-2007
CitationJournal of Magnetism and Magnetic Materials316(2): e425-e427 (2007)
AbstractWe present an XMCD study performed at the Fe–K-edge through the Ho(Al1−xFex)2 Laves phases. In agreement with other series, a rare-earth contribution, XMCDR, is found. We have also observed that in these compounds XMCDR is clearly larger than that obtained in series with a lower R:Fe ratio, indicating a relation between the size of XMCDR and the number of R neighboring atoms. In addition, the rare-earth sublattice also affects the peak at lower energy, contrary to results obtained on other R–T series, where this lower-energy peak was typically considered as purely of Fe origin. The influence of the R sublattice even at 0 eV prevents from using Fe–K-edge XMCD as a fingerprint to study the magnetic character of Fe.
Description3 pages, 3 figures.-- PACS classification codes: 75.30.−m; 75.30.Kz; 61.10.Ht
Publisher version (URL)http://dx.doi.org/10.1016/j.jmmm.2007.02.168
Appears in Collections:(ICMA) Artículos
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