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Title
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Giant magnetoresistance in the half-metallic double-perovskite ferrimagnet
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Author
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Abstract
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| The first transition-metal-only double perovskite compound, Mn2+ Fe-2(3+) Re5+ O-6, with 17 unpaired d electrons displays ferrimagnetic ordering up to 520K and a giant positive magnetoresistance of up to 220% at 5K and 8 T. These properties result from the ferrimagnetically coupled Fe and Re sublattice and are affected by a two-to-one magnetic-structure transition of the Mn sublattice when a magnetic field is applied. Theoretical calculations indicate that the half-metallic state can be mainly attributed to the spin polarization of the Fe and Re sites. |
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Language
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English
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Source (journal)
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Angewandte Chemie: international edition in English. - Weinheim
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Publication
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Weinheim
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2015
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ISSN
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1433-7851
0570-0833
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DOI
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10.1002/ANIE.201506456
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Volume/pages
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54
:41
(2015)
, p. 12069-12073
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ISI
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000363396000031
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Pubmed ID
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26235744
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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