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Structural and magnetic properties of Mn3-xCdxTeO6 (x = 0, 1, 1.5 and 2)
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
Dept of Inorganic Materials, Karpov' Institute of Physical Chemistry, Moskva, Ryssland.
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2012 (English)In: Journal of Magnetism and Magnetic Materials, ISSN 0304-8853, E-ISSN 1873-4766, Vol. 324, no 8, 1637-1644 p.Article in journal (Refereed) Published
Abstract [en]

Mn(3)TeO(6) exhibits a corundum-related A(3)TeO(6) structure and a complex magnetic structure involving two magnetic orbits for the Mn atoms [Ivanov et al., 2011 [3]]. Mn(3-x)Cd(x)TeO(6) (x = 0, 1, 1.5, and 2) ceramics were synthesized by solid state reaction and investigated using X-ray powder diffraction, electron microscopy, and calorimetric and magnetic measurements. Cd(2+) replaces Mn(2+) cations without greatly affecting the structure of the compound. The Mn and Cd cations were found to be randomly distributed over the A-site. Magnetization measurements indicated that the samples order antiferromagnetically at low temperature with a transition temperature that decreases with increasing Cd doping. The nuclear and magnetic structure of one specially prepared (114)Cd containing sample: Mn(1.5) (114)Cd(1.5)TeO(6), was studied using neutron powder diffraction over the temperature range 2-295 K. Mn(1.5) (114)Cd(1.5)TeO(6) was found to order in an incommensurate helical magnetic structure, very similar to that of Mn(3)TeO(6) [Ivanov et al., 2011 [3]]. However, with a lower transition temperature and the extension of the ordered structure confined to order 240(10) angstrom.

Place, publisher, year, edition, pages
2012. Vol. 324, no 8, 1637-1644 p.
Keyword [en]
Oxides, Magnetism, Tellurates, Magnetic structures, Neutron diffraction, Multiferroics
National Category
Condensed Matter Physics Engineering and Technology Inorganic Chemistry
Research subject
Engineering Science with specialization in Solid State Physics; Chemistry with specialization in Inorganic Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-164879DOI: 10.1016/j.jmmm.2011.12.027ISI: 000299114400031OAI: oai:DiVA.org:uu-164879DiVA: diva2:470553
Available from: 2011-12-29 Created: 2011-12-29 Last updated: 2017-12-08Bibliographically approved

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Publisher's full texthttp://www.sciencedirect.com/science/article/pii/S0304885311009000

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Ivanov, Sergey AMathieu, RolandNordblad, PerTellgren, Roland

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