Magnetostriction-polarization coupling in multiferroic Mn2MnWO6

Man-Rong Li (), Emma E. McCabe, Peter W. Stephens, Mark Croft, Liam Collins, Sergei V. Kalinin, Zheng Deng, Maria Retuerto, Arnab Gupta, Haricharan Padmanabhan, Venkatraman Gopalan, Christoph P. Grams, Joachim Hemberger, Fabio Orlandi, Pascal Manuel, Wen-Min Li, Chang-Qing Jin, David Walker and Martha Greenblatt ()
Additional contact information
Man-Rong Li: Sun Yat-Sen University
Emma E. McCabe: University of Kent, Canterbury
Peter W. Stephens: State University of New York
Mark Croft: Rutgers, the State University of New Jersey
Liam Collins: Oak Ridge National Laboratory
Sergei V. Kalinin: Oak Ridge National Laboratory
Zheng Deng: Rutgers, the State University of New Jersey
Maria Retuerto: Rutgers, the State University of New Jersey
Arnab Gupta: Pennsylvania State University, University Park
Haricharan Padmanabhan: Pennsylvania State University, University Park
Venkatraman Gopalan: Pennsylvania State University, University Park
Christoph P. Grams: Universität zu Köln
Joachim Hemberger: Universität zu Köln
Fabio Orlandi: STFC, Rutherford Appleton Laboratory, Chilton
Pascal Manuel: STFC, Rutherford Appleton Laboratory, Chilton
Wen-Min Li: Chinese Academy of Sciences
Chang-Qing Jin: Chinese Academy of Sciences
David Walker: Columbia University
Martha Greenblatt: Rutgers, the State University of New Jersey

Nature Communications, 2017, vol. 8, issue 1, 1-9

Abstract: Abstract Double corundum-related polar magnets are promising materials for multiferroic and magnetoelectric applications in spintronics. However, their design and synthesis is a challenge, and magnetoelectric coupling has only been observed in Ni3TeO6 among the known double corundum compounds to date. Here we address the high-pressure synthesis of a new polar and antiferromagnetic corundum derivative Mn2MnWO6, which adopts the Ni3TeO6-type structure with low temperature first-order field-induced metamagnetic phase transitions (T N = 58 K) and high spontaneous polarization (~ 63.3 μC·cm−2). The magnetostriction-polarization coupling in Mn2MnWO6 is evidenced by second harmonic generation effect, and corroborated by magnetic-field-dependent pyroresponse behavior, which together with the magnetic-field-dependent polarization and dielectric measurements, qualitatively indicate magnetoelectric coupling. Piezoresponse force microscopy imaging and spectroscopy studies on Mn2MnWO6 show switchable polarization, which motivates further exploration on magnetoelectric effect in single crystal/thin film specimens.

Date: 2017
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DOI: 10.1038/s41467-017-02003-3

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