Article (Scientific journals)
Mn2TeO6: A Distorted Inverse Trirutile Structure
Matsubara, N.; Damay, F.; Vertruyen, Bénédicte et al.
2017In Inorganic Chemistry, 56 (16), p. 9742-9753
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Abstract :
[en] Inverse trirutile Mn2TeO6 was investigated using in situ neutron and X-ray powder diffraction between 700 °C and room temperature. When the temperature was decreased, a structural phase transition was observed around 400 °C, from a tetragonal (P42/mnm) to a monoclinic phase (P21/c), involving a doubling of the cell parameter along b. This complex monoclinic structure has been solved by combining electron, neutron, and synchrotron powder diffraction techniques at room temperature. It can be described as a distorted superstructure of the inverse trirutile structure, in which compressed and elongated MnO6 octahedra alternate with more regular TeO6 octahedra, forming a herringbone-like pattern. Rietveld refinements, carried out with symmetry-adapted modes, show that the structural transition, arguably of Jahn-Teller origin, is driven by a single primary mode. © 2017 American Chemical Society.
Disciplines :
Physics
Chemistry
Author, co-author :
Matsubara, N.;  CRISMAT, 6 bvd Maréchal Juin, Caen Cedex, France, Laboratoire Léon Brillouin, CEA-CNRS UMR12, Université Paris-Saclay, Gif sur Yvette Cedex, France
Damay, F.;  Laboratoire Léon Brillouin, CEA-CNRS UMR12, Université Paris-Saclay, Gif sur Yvette Cedex, France
Vertruyen, Bénédicte  ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie inorganique structurale
Barrier, N.;  CRISMAT, 6 bvd Maréchal Juin, Caen Cedex, France
Lebedev, O. I.;  CRISMAT, 6 bvd Maréchal Juin, Caen Cedex, France
Boullay, P.;  CRISMAT, 6 bvd Maréchal Juin, Caen Cedex, France
Elkaïm, E.;  Synchrotron Soleil, Saint-Aubin BP 48, Gif sur Yvette Cedex, France
Manuel, P.;  ISIS Facility, Rutherford Appleton Laboratory-CCLRC, Chilton-Didcot, Oxfordshire, United Kingdom
Khalyavin, D. D.;  ISIS Facility, Rutherford Appleton Laboratory-CCLRC, Chilton-Didcot, Oxfordshire, United Kingdom
Martin, Christine;  CRISMAT, 6 bvd Maréchal Juin, Caen Cedex, France
Language :
English
Title :
Mn2TeO6: A Distorted Inverse Trirutile Structure
Publication date :
2017
Journal title :
Inorganic Chemistry
ISSN :
0020-1669
eISSN :
1520-510X
Publisher :
American Chemical Society, Washington, United States
Volume :
56
Issue :
16
Pages :
9742-9753
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 13 December 2017

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