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Spin and Dipole Ord...
Spin and Dipole Ordering in Ni2InSbO6 and Ni2ScSbO6 with Corundum-Related Structure
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- Ivanov, Sergey A. (author)
- Uppsala universitet,Fasta tillståndets fysik
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- Mathieu, Roland (author)
- Uppsala universitet,Fasta tillståndets fysik
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- Nordblad, Per (author)
- Uppsala universitet,Fasta tillståndets fysik
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- Tellgren, Roland (author)
- Uppsala universitet,Strukturkemi
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Ritter, C. (author)
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Politova, E. (author)
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Kaleva, G. (author)
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Mosunov, A. (author)
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Stefanovich, S. (author)
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Weil, M. (author)
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(creator_code:org_t)
- 2013-03-06
- 2013
- English.
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In: Chemistry of Materials. - : American Chemical Society (ACS). - 0897-4756 .- 1520-5002. ; 25:6, s. 935-945
- Related links:
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http://arxiv.org/pdf...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- The complex metal oxides Ni2InSbO6 (NISO) and Ni2ScSbO6 (NSSO) have been prepared in the form of polycrystalline powders by a solid state reaction route. The crystal structure and magnetic properties of the compounds were investigated using a combination of X-ray and neutron powder diffraction, electron microscopy, calorimetric, and magnetic measurements. The compounds adopt a trigonal structure, space group R3, of the corundum related Ni3TeO6 (NTO) type. Only one of the octahedral Ni positions (Ni(2)) of the NTO structure was found to be occupied by In (Sc). NTO has noncentrosymmetric structure and is ferroelectric below 1000 K; dielectric and second harmonic measurements suggest that also NISO and NSSO are correspondingly ferroelectric. Magnetization measurements signified antiferromagnetic ordering below T-N = 60 K (NSSO) and 76 K (NISO). The magnetic structure is formed by two antiferromagnetically coupled incommensurate helices with the spiral axis along the b-axis and propagation vector k = [0, k(y),0] with k(y) = 0.036(1) (NSSO) and k(y) = 0.029(1) (NISO). The observed structural and magnetic properties of NISO and NSSO are discussed and compared with those of NTO.
Keyword
- neutron scattering
- crystal structure
- magnetic properties
- ferroelectricity
- Teknisk fysik med inriktning mot fasta tillståndets fysik
- Engineering Science with specialization in Solid State Physics
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Ivanov, Sergey A ...
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Mathieu, Roland
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Nordblad, Per
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Tellgren, Roland
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Ritter, C.
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Politova, E.
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show more...
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Kaleva, G.
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Mosunov, A.
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Stefanovich, S.
-
Weil, M.
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show less...
- Articles in the publication
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Chemistry of Mat ...
- By the university
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Uppsala University