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Cation, magnetic, and charge ordering in MnFe₃O₅.

ABSTRACT: The recently-discovered high pressure material MnFe₃O₅ displays a rich variety of magnetically ordered states on cooling. Fe spins order antiferromagnetically below a Néel transition at 350 K. A second transition at 150 K marks Mn spin order that leads to spin canting of some of the Fe spins and ferrimagnetism. A further transition at 60 K is driven by charge ordering of Fe²⁺ and Fe³⁺ over two inequivalent Fe sites, with further canting of all spins. Electrical resistivity measurements reveal semiconducting behaviour in MnFe₃O₅ with a change in activation energy at 285 K.

SUBMITTER: Hong KH

PROVIDER: S-EPMC6003543 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature

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Cation, magnetic, and charge ordering in MnFe3O5.

Hong K H KH Arevalo-Lopez A M AM Coduri M M McNally G M GM Attfield J P JP

Journal of materials chemistry. C 20180116 13

The recently-discovered high pressure material MnFe3O5 displays a rich variety of magnetically ordered states on cooling. Fe spins order antiferromagnetically below a Néel transition at 350 K. A second transition at 150 K marks Mn spin order that leads to spin canting of some of the Fe spins and ferrimagnetism. A further transition at 60 K is driven by charge ordering of Fe2+ and Fe3+ over two inequivalent Fe sites, with further canting of all spins. E ...[more]

PMID: 30009028

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