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New insights into the multiferroic properties of Mn3TeO6
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics. Karpov Inst Phys Chem, Ctr Mat Sci, Moscow 105064, Russia..
Inst Laue Langevin, BP 156, F-38042 Grenoble, France..
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
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2017 (English)In: Journal of Physics D: Applied Physics, ISSN 0022-3727, E-ISSN 1361-6463, Vol. 50, no 8, 085001Article in journal (Refereed) Published
Abstract [en]

Mn3TeO6 has a trigonal corundum related structure (space group R (3) over bar), and orders in an incommensurate antiferromagnetic (AFM) structure at T-N approximate to 24 K. A weak ferroelectric order below T* similar to 21 K has recently been reported. In order to investigate possible structural changes below T-N leading to the observed dipole order, we have performed a detailed study of the crystal and magnetic structures of Mn3TeO6 using neutron powder diffraction (NPD) in the temperature range of 5-40 K. Complementary low-temperature second harmonic generation (SHG) measurements were performed in order to confirm the reported dipole order at T*. No change in the rhombohedral symmetry associated with a possible displacive phase transition at T* was observed in the long-range structural correlations, and it appears that Mn3TeO6 keeps the same incommensurately modulated magnetic spin structure with the propagation vector k = (0; 0; 0.43) in the whole temperature range from 5 to 24 K.

Place, publisher, year, edition, pages
IOP PUBLISHING LTD , 2017. Vol. 50, no 8, 085001
Keyword [en]
electronic materials, neutron scattering, x-ray diffraction, crystal structure, magnetic properties
National Category
Physical Sciences Engineering and Technology
Identifiers
URN: urn:nbn:se:uu:diva-319548DOI: 10.1088/1361-6463/aa5621ISI: 000395378000001OAI: oai:DiVA.org:uu-319548DiVA: diva2:1087221
Funder
Swedish Research CouncilThe Swedish Foundation for International Cooperation in Research and Higher Education (STINT)
Available from: 2017-04-06 Created: 2017-04-06 Last updated: 2017-04-07Bibliographically approved

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Ivanov, Sergey A.Nordblad, PerTellgren, RolandMathieu, Roland
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