Spin-induced multiferroicity in the binary perovskite manganite Mn2O3

Junzhuang Cong, Kun Zhai, Yisheng Chai, Dashan Shang, Dmitry D. Khalyavin, Roger D. Johnson, Denis P. Kozlenko, Sergey E. Kichanov, Artem M. Abakumov, Alexander A. Tsirlin, Leonid Dubrovinsky, Xueli Xu, Zhigao Sheng, Sergey V. Ovsyannikov () and Young Sun ()
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Junzhuang Cong: Chinese Academy of Sciences
Kun Zhai: Chinese Academy of Sciences
Yisheng Chai: Chinese Academy of Sciences
Dashan Shang: Chinese Academy of Sciences
Dmitry D. Khalyavin: Rutherford Appleton Laboratory-STFC
Roger D. Johnson: University of Oxford
Denis P. Kozlenko: Joint Institute for Nuclear Research
Sergey E. Kichanov: Joint Institute for Nuclear Research
Artem M. Abakumov: Skolkovo Institute of Science and Technology
Alexander A. Tsirlin: University of Augsburg
Leonid Dubrovinsky: Universität Bayreuth
Xueli Xu: Chinese Academy of Sciences
Zhigao Sheng: Chinese Academy of Sciences
Sergey V. Ovsyannikov: Universität Bayreuth
Young Sun: Chinese Academy of Sciences

Nature Communications, 2018, vol. 9, issue 1, 1-7

Abstract: Abstract The ABO3 perovskite oxides exhibit a wide range of interesting physical phenomena remaining in the focus of extensive scientific investigations and various industrial applications. In order to form a perovskite structure, the cations occupying the A and B positions in the lattice, as a rule, should be different. Nevertheless, the unique binary perovskite manganite Mn2O3 containing the same element in both A and B positions can be synthesized under high-pressure high-temperature conditions. Here, we show that this material exhibits magnetically driven ferroelectricity and a pronounced magnetoelectric effect at low temperatures. Neutron powder diffraction revealed two intricate antiferromagnetic structures below 100 K, driven by a strong interplay between spin, charge, and orbital degrees of freedom. The peculiar multiferroicity in the Mn2O3 perovskite is ascribed to a combined effect involving several mechanisms. Our work demonstrates the potential of binary perovskite oxides for creating materials with highly promising electric and magnetic properties.

Date: 2018
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DOI: 10.1038/s41467-018-05296-0

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