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 (TN = 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.
Original language | English |
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Article number | 2037 |
Journal | Nature Communications |
Volume | 8 |
Issue number | 1 |
DOIs | |
State | Published - Dec 1 2017 |
Funding
This work was supported by the NSF-DMR-1507252 grant. M.R.L. thanks the “One Thousand Youth Talents” Program of China. Use of the NSLS, Brookhaven National Laboratory was supported by the DOE BES (DE-AC02-98CH10886). A.S.G., H.P. and V.G. acknowledge support for them the Penn State NSF-MRSEC Center for Nanoscale Science grant (DMR-1420620). M.R. thanks the Spanish Juan de la Cierva grant FPDI-2013-17582. C.P.G. and J.H. were funded through the Institutional Strategy of the University of Cologne and CRC1238 within the German Excellence Initiative. Experiments at the ISIS Pulsed Neutron and Muon Source were supported by a beam-time allocation from the Science and Technology Facilities Council. P.M. and F.O. acknowledge support from the project TUMOCS. This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreements No.645660. PFM experminents were conducted and partially supported (L.C., S.V.K.) at the Center for Nanophase Materials Sciences, which is a US DOE Office of Science User Facility. We are grateful to Prof J.S.O. Evans and Dr A. McLennan for making a long cif Topas macro widely available.
Funders | Funder number |
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Center for Nanophase Materials Sciences | |
ISIS | |
NSLS | |
One Thousand Youth Talents” Program of China | |
Penn State NSF-MRSEC Center for Nanoscale Science | DMR-1420620 |
Spanish Juan de la Cierva | FPDI-2013-17582 |
Office of Science | |
Basic Energy Sciences | DE-AC02-98CH10886 |
Horizon 2020 Framework Programme | |
H2020 Marie Skłodowska-Curie Actions | 645660 |
Science and Technology Facilities Council | |
Horizon 2020 | |
Universität zu Köln | CRC1238 |