Modulated structure of the composite crystal InCr1-xTi xO3+x/2

Yuichi Michiue; Mitsuko Onoda; Francisco Brown; Noboru Kimizuka

doi:10.1016/j.jssc.2004.04.033

Modulated structure of the composite crystal InCr_1-xTi _xO_3+x/2

Yuichi Michiue, Mitsuko Onoda, Francisco Brown, Noboru Kimizuka

Departamento de Investigación en Polímeros y Materiales

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Incommensurately modulated structure of the composite crystal InCr _1-xTi_xO_3+x/2 was refined by the profile fitting of powder X-ray diffraction based on the four-dimensional superspace group. The crystal consists of two monoclinic subsystems mutually incommensurate in b. The first subsystem is the alternate stacking of an edge-shared InO₆ octahedral layer and a Cr/Ti triangle-lattice plane along c*. A sheet of oxygen atoms constructing the second subsystem is also extending on the Cr/Ti plane. The whole structure is the alternate stacking of an edge-shared InO ₆ octahedral layer and a Cr/Ti-O plane, where displacive modulation of O ions is prominent. Metal ions on the Cr/Ti-O plane are surrounded by three or four oxygen ions on the plane and, in addition, two axial ones.

Original language	English
Pages (from-to)	2644-2648
Number of pages	5
Journal	Journal of Solid State Chemistry
Volume	177
Issue number	8
DOIs	https://doi.org/10.1016/j.jssc.2004.04.033
State	Published - Aug 2004

Keywords

Composite crystal
InCrTiO
Incommensurate structure
Modulated structure

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10.1016/j.jssc.2004.04.033

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title = "Modulated structure of the composite crystal InCr1-xTi xO3+x/2",

abstract = "Incommensurately modulated structure of the composite crystal InCr 1-xTixO3+x/2 was refined by the profile fitting of powder X-ray diffraction based on the four-dimensional superspace group. The crystal consists of two monoclinic subsystems mutually incommensurate in b. The first subsystem is the alternate stacking of an edge-shared InO6 octahedral layer and a Cr/Ti triangle-lattice plane along c*. A sheet of oxygen atoms constructing the second subsystem is also extending on the Cr/Ti plane. The whole structure is the alternate stacking of an edge-shared InO 6 octahedral layer and a Cr/Ti-O plane, where displacive modulation of O ions is prominent. Metal ions on the Cr/Ti-O plane are surrounded by three or four oxygen ions on the plane and, in addition, two axial ones.",

keywords = "Composite crystal, InCrTiO, Incommensurate structure, Modulated structure",

author = "Yuichi Michiue and Mitsuko Onoda and Francisco Brown and Noboru Kimizuka",

year = "2004",

month = aug,

doi = "10.1016/j.jssc.2004.04.033",

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TY - JOUR

T1 - Modulated structure of the composite crystal InCr1-xTi xO3+x/2

AU - Michiue, Yuichi

AU - Onoda, Mitsuko

AU - Brown, Francisco

AU - Kimizuka, Noboru

PY - 2004/8

Y1 - 2004/8

N2 - Incommensurately modulated structure of the composite crystal InCr 1-xTixO3+x/2 was refined by the profile fitting of powder X-ray diffraction based on the four-dimensional superspace group. The crystal consists of two monoclinic subsystems mutually incommensurate in b. The first subsystem is the alternate stacking of an edge-shared InO6 octahedral layer and a Cr/Ti triangle-lattice plane along c*. A sheet of oxygen atoms constructing the second subsystem is also extending on the Cr/Ti plane. The whole structure is the alternate stacking of an edge-shared InO 6 octahedral layer and a Cr/Ti-O plane, where displacive modulation of O ions is prominent. Metal ions on the Cr/Ti-O plane are surrounded by three or four oxygen ions on the plane and, in addition, two axial ones.

AB - Incommensurately modulated structure of the composite crystal InCr 1-xTixO3+x/2 was refined by the profile fitting of powder X-ray diffraction based on the four-dimensional superspace group. The crystal consists of two monoclinic subsystems mutually incommensurate in b. The first subsystem is the alternate stacking of an edge-shared InO6 octahedral layer and a Cr/Ti triangle-lattice plane along c*. A sheet of oxygen atoms constructing the second subsystem is also extending on the Cr/Ti plane. The whole structure is the alternate stacking of an edge-shared InO 6 octahedral layer and a Cr/Ti-O plane, where displacive modulation of O ions is prominent. Metal ions on the Cr/Ti-O plane are surrounded by three or four oxygen ions on the plane and, in addition, two axial ones.

KW - Composite crystal

KW - InCrTiO

KW - Incommensurate structure

KW - Modulated structure

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U2 - 10.1016/j.jssc.2004.04.033

DO - 10.1016/j.jssc.2004.04.033

M3 - Artículo

SN - 0022-4596

VL - 177

SP - 2644

EP - 2648

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

IS - 8

ER -

Modulated structure of the composite crystal InCr_1-xTi _xO_3+x/2

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Keywords

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