SrMn3O6

An incommensurate modulated tunnel structure

L. J. Gillie, J. Hadermann, O. Pérez, C. Martin, M. Hervieu, E. Suard

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The crystallographic structure of a mixed valent manganite SrMn 3O6 with a 1D modulated structure is reported. The SrMn3O6 structure can be described with the basic subcell space group Pnma (a=9.1334(5)Å; b=2.8219(2)Å; c=12.0959(7)Å), but transmission electron microscopy revealed that the study of the real structure requires a 4D-formalism approach with superspace group P2 1/a(αβ0)00 (unique axis c), with a modulation wave vector q having the approximate components (0.52a*+0.31b*). The crystallographic structure is closely related to those of NaxFe xTi2-xO4 and Pb1.5BaMn 6Al2O16, comprising of unusual "figure-of-eight"-shaped tunnels, made up of strings of edge- and corner-sharing (Fe/Ti)O6 or (Mn/Al)O6 octahedra, with the other cations situated in the tunnel cavities. Structural refinement was performed on X-ray and neutron powder diffraction data using the 4D formalism. All atoms in the crystal are affected by a displacive modulation wave, and a saw tooth function is employed to model the displacement and occupancy of the Sr sites. Magnetic susceptibility measurements reveal a sharp antiferromagnetic transition with TN∼46K.

Original languageEnglish
Pages (from-to)3383-3391
Number of pages9
JournalJournal of Solid State Chemistry
Volume177
Issue number10
Early online date20 Jul 2004
DOIs
Publication statusPublished - Oct 2004
Externally publishedYes

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tunnels
Tunnels
Modulation
formalism
modulation
Neutron powder diffraction
teeth
Magnetic susceptibility
X ray powder diffraction
Cations
strings
Positive ions
Transmission electron microscopy
magnetic permeability
cations
neutrons
Atoms
transmission electron microscopy
Crystals
cavities

Cite this

Gillie, L. J., Hadermann, J., Pérez, O., Martin, C., Hervieu, M., & Suard, E. (2004). SrMn3O6: An incommensurate modulated tunnel structure. Journal of Solid State Chemistry, 177(10), 3383-3391. https://doi.org/10.1016/j.jssc.2004.05.057
Gillie, L. J. ; Hadermann, J. ; Pérez, O. ; Martin, C. ; Hervieu, M. ; Suard, E. / SrMn3O6 : An incommensurate modulated tunnel structure. In: Journal of Solid State Chemistry. 2004 ; Vol. 177, No. 10. pp. 3383-3391.
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abstract = "The crystallographic structure of a mixed valent manganite SrMn 3O6 with a 1D modulated structure is reported. The SrMn3O6 structure can be described with the basic subcell space group Pnma (a=9.1334(5){\AA}; b=2.8219(2){\AA}; c=12.0959(7){\AA}), but transmission electron microscopy revealed that the study of the real structure requires a 4D-formalism approach with superspace group P2 1/a(αβ0)00 (unique axis c), with a modulation wave vector q having the approximate components (0.52a*+0.31b*). The crystallographic structure is closely related to those of NaxFe xTi2-xO4 and Pb1.5BaMn 6Al2O16, comprising of unusual {"}figure-of-eight{"}-shaped tunnels, made up of strings of edge- and corner-sharing (Fe/Ti)O6 or (Mn/Al)O6 octahedra, with the other cations situated in the tunnel cavities. Structural refinement was performed on X-ray and neutron powder diffraction data using the 4D formalism. All atoms in the crystal are affected by a displacive modulation wave, and a saw tooth function is employed to model the displacement and occupancy of the Sr sites. Magnetic susceptibility measurements reveal a sharp antiferromagnetic transition with TN∼46K.",
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Gillie, LJ, Hadermann, J, Pérez, O, Martin, C, Hervieu, M & Suard, E 2004, 'SrMn3O6: An incommensurate modulated tunnel structure', Journal of Solid State Chemistry, vol. 177, no. 10, pp. 3383-3391. https://doi.org/10.1016/j.jssc.2004.05.057

SrMn3O6 : An incommensurate modulated tunnel structure. / Gillie, L. J.; Hadermann, J.; Pérez, O.; Martin, C.; Hervieu, M.; Suard, E.

In: Journal of Solid State Chemistry, Vol. 177, No. 10, 10.2004, p. 3383-3391.

Research output: Contribution to journalArticle

TY - JOUR

T1 - SrMn3O6

T2 - An incommensurate modulated tunnel structure

AU - Gillie, L. J.

AU - Hadermann, J.

AU - Pérez, O.

AU - Martin, C.

AU - Hervieu, M.

AU - Suard, E.

PY - 2004/10

Y1 - 2004/10

N2 - The crystallographic structure of a mixed valent manganite SrMn 3O6 with a 1D modulated structure is reported. The SrMn3O6 structure can be described with the basic subcell space group Pnma (a=9.1334(5)Å; b=2.8219(2)Å; c=12.0959(7)Å), but transmission electron microscopy revealed that the study of the real structure requires a 4D-formalism approach with superspace group P2 1/a(αβ0)00 (unique axis c), with a modulation wave vector q having the approximate components (0.52a*+0.31b*). The crystallographic structure is closely related to those of NaxFe xTi2-xO4 and Pb1.5BaMn 6Al2O16, comprising of unusual "figure-of-eight"-shaped tunnels, made up of strings of edge- and corner-sharing (Fe/Ti)O6 or (Mn/Al)O6 octahedra, with the other cations situated in the tunnel cavities. Structural refinement was performed on X-ray and neutron powder diffraction data using the 4D formalism. All atoms in the crystal are affected by a displacive modulation wave, and a saw tooth function is employed to model the displacement and occupancy of the Sr sites. Magnetic susceptibility measurements reveal a sharp antiferromagnetic transition with TN∼46K.

AB - The crystallographic structure of a mixed valent manganite SrMn 3O6 with a 1D modulated structure is reported. The SrMn3O6 structure can be described with the basic subcell space group Pnma (a=9.1334(5)Å; b=2.8219(2)Å; c=12.0959(7)Å), but transmission electron microscopy revealed that the study of the real structure requires a 4D-formalism approach with superspace group P2 1/a(αβ0)00 (unique axis c), with a modulation wave vector q having the approximate components (0.52a*+0.31b*). The crystallographic structure is closely related to those of NaxFe xTi2-xO4 and Pb1.5BaMn 6Al2O16, comprising of unusual "figure-of-eight"-shaped tunnels, made up of strings of edge- and corner-sharing (Fe/Ti)O6 or (Mn/Al)O6 octahedra, with the other cations situated in the tunnel cavities. Structural refinement was performed on X-ray and neutron powder diffraction data using the 4D formalism. All atoms in the crystal are affected by a displacive modulation wave, and a saw tooth function is employed to model the displacement and occupancy of the Sr sites. Magnetic susceptibility measurements reveal a sharp antiferromagnetic transition with TN∼46K.

KW - High-resolution electron microscopy

KW - Manganese oxides

KW - Modulated structure

KW - Neutron powder diffraction

KW - Tunnel structures

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UR - https://www.journals.elsevier.com/journal-of-solid-state-chemistry

U2 - 10.1016/j.jssc.2004.05.057

DO - 10.1016/j.jssc.2004.05.057

M3 - Article

VL - 177

SP - 3383

EP - 3391

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

SN - 0022-4596

IS - 10

ER -