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Magnetism in Re-based ferrimagnetic double perovskites
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2009 (English)In: New Journal of Physics, ISSN 1367-2630, E-ISSN 1367-2630, Vol. 11, 073047- p.Article in journal (Refereed) Published
Abstract [en]

We have investigated spin and orbital magnetic moments of the Re 5d ion in the double perovskites A(2)FeReO(6) (A = Ba, Sr, Ca) by x-ray magnetic circular dichroism (XMCD) at the Re L(2,3) edges. In these ferrimagnetic compounds, an unusually large negative spin and positive orbital magnetic moment at the Re atoms was detected. The presence of a finite spin magnetic moment in a 'non-magnetic' double perovskite as observed in the double perovskite Sr(2)ScReO(6) proves that Re has also a small, but finite intrinsic magnetic moment. We further show for the examples of Ba and Ca that the usually neglected alkaline earth ions undoubtedly also contribute to the magnetism in the ferrimagnetic double perovskites.

Place, publisher, year, edition, pages
2009. Vol. 11, 073047- p.
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Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-101645DOI: 10.1088/1367-2630/11/7/073047ISI: 000268480200001Scopus ID: 2-s2.0-68149180954OAI: oai:DiVA.org:kth-101645DiVA: diva2:549599
Note

QC 20120905

Available from: 2012-09-05 Created: 2012-08-30 Last updated: 2017-12-07Bibliographically approved

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Vaitheeswaran, GanapathyKanchana, Venkatakrishnan
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