Journal Articles Journal of Materials Chemistry C Year : 2018

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 Neel 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.

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hal-02976299 , version 1 (23-10-2020)

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K. H. Hong, Angel Arévalo-López, M. Coduri, G. M. Mcnally, J. P. Attfield. Cation, magnetic, and charge ordering in MnFe3O5. Journal of Materials Chemistry C, 2018, 6 (13), pp.3271-3275. ⟨10.1039/c8tc00053k⟩. ⟨hal-02976299⟩
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