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Spin-Induced Multiferroic Behavior in Centrosymmetric Mn3WO6

MPS-Authors
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Peng,  Wei
Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Komarek,  A. C.
Alexander Komarek, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Kuo,  Chang-Yang
Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Chang,  Chun-Fu
Chun-Fu Chang, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Wang,  Xiao
Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Hu,  Zhiwei
Zhiwei Hu, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Tjeng,  Liu Hao
Liu Hao Tjeng, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Maignan, A., Peng, W., Komarek, A. C., Kuo, C.-Y., Chang, C.-F., Wang, X., et al. (2020). Spin-Induced Multiferroic Behavior in Centrosymmetric Mn3WO6. Chemistry of Materials, 32(13), 5664-5669. doi:10.1021/acs.chemmater.0c01303.


Cite as: http://hdl.handle.net/21.11116/0000-0006-D25A-8
Abstract
The Mn3WO6 oxide, prepared by a solid-state reaction at ambient pressure, is found to crystallize at room temperature in the centrosymmetric R3 trigonal structure of Mg3TeO6. By X-ray absorption spectroscopy (XAS) at the Mn-L-2,L-3 edges, a divalent oxidation state for manganese is established, consistent with W6+ and O2-, which fits with the value extracted from analyzing the paramagnetic regime. Interestingly, anomalies in dielectric and pyroelectric measurements can be observed concomitant with the antiferromagnetic transition at T-N approximate to 25 K. The corresponding electrical polarization, P = +/- 15 mu C m(-2) below TN, can be inverted by opposite poling, which confirms that Mn3WO6 is a spin-induced multiferroic (MF) material.