Structural analysis of spinel compound CuV2S4 with incommensurate charge-density wave

Shogo Kawaguchi; Yoshiki Kubota; Naruki Tsuji; Jungeun Kim; Kenichi Kato; Masaki Takata; Hiroki Ishibashi

doi:10.1088/1742-6596/391/1/012095

Structural analysis of spinel compound CuV₂S₄ with incommensurate charge-density wave

Shogo Kawaguchi, Yoshiki Kubota, Naruki Tsuji, Jungeun Kim, Kenichi Kato, Masaki Takata, Hiroki Ishibashi

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

Spinel Compound CuV2S4 exhibits incommensurate charge-density wave (CDW) transition at Tt ∼ 90 K accompanied by a structural phase transition. We have performed synchrotron powder diffraction experiments in order to determine the crystal structure for low temperature phase. The CDW phase has an orthorhombic symmetry with the superspace group Imm2(0β0). It was found that the crystal structure is characterized by the significant change of bond lengths between vanadium atoms along a-axis. We suggested that this change is related to the orbital ordering of t2g orbitals, which is the origin of the formation of the CDW.

Original language	English
Article number	012095
Journal	Journal of Physics: Conference Series
Volume	391
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/391/1/012095
Publication status	Published - 2012
Externally published	Yes
Event	International Conference on Strongly Correlated Electron Systems, SCES 2011 - Cambridge, United Kingdom Duration: 2011 Aug 29 → 2011 Sept 3

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1088/1742-6596/391/1/012095

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title = "Structural analysis of spinel compound CuV2S4 with incommensurate charge-density wave",

abstract = "Spinel Compound CuV2S4 exhibits incommensurate charge-density wave (CDW) transition at Tt ∼ 90 K accompanied by a structural phase transition. We have performed synchrotron powder diffraction experiments in order to determine the crystal structure for low temperature phase. The CDW phase has an orthorhombic symmetry with the superspace group Imm2(0β0). It was found that the crystal structure is characterized by the significant change of bond lengths between vanadium atoms along a-axis. We suggested that this change is related to the orbital ordering of t2g orbitals, which is the origin of the formation of the CDW.",

author = "Shogo Kawaguchi and Yoshiki Kubota and Naruki Tsuji and Jungeun Kim and Kenichi Kato and Masaki Takata and Hiroki Ishibashi",

year = "2012",

doi = "10.1088/1742-6596/391/1/012095",

language = "English",

volume = "391",

journal = "Journal of Physics: Conference Series",

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note = "International Conference on Strongly Correlated Electron Systems, SCES 2011 ; Conference date: 29-08-2011 Through 03-09-2011",

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T1 - Structural analysis of spinel compound CuV2S4 with incommensurate charge-density wave

AU - Kawaguchi, Shogo

AU - Kubota, Yoshiki

AU - Tsuji, Naruki

AU - Kim, Jungeun

AU - Kato, Kenichi

AU - Takata, Masaki

AU - Ishibashi, Hiroki

PY - 2012

Y1 - 2012

N2 - Spinel Compound CuV2S4 exhibits incommensurate charge-density wave (CDW) transition at Tt ∼ 90 K accompanied by a structural phase transition. We have performed synchrotron powder diffraction experiments in order to determine the crystal structure for low temperature phase. The CDW phase has an orthorhombic symmetry with the superspace group Imm2(0β0). It was found that the crystal structure is characterized by the significant change of bond lengths between vanadium atoms along a-axis. We suggested that this change is related to the orbital ordering of t2g orbitals, which is the origin of the formation of the CDW.

AB - Spinel Compound CuV2S4 exhibits incommensurate charge-density wave (CDW) transition at Tt ∼ 90 K accompanied by a structural phase transition. We have performed synchrotron powder diffraction experiments in order to determine the crystal structure for low temperature phase. The CDW phase has an orthorhombic symmetry with the superspace group Imm2(0β0). It was found that the crystal structure is characterized by the significant change of bond lengths between vanadium atoms along a-axis. We suggested that this change is related to the orbital ordering of t2g orbitals, which is the origin of the formation of the CDW.

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VL - 391

JO - Journal of Physics: Conference Series

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ER -

Structural analysis of spinel compound CuV₂S₄ with incommensurate charge-density wave

Abstract

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