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 journalConference articlepeer-review

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 languageEnglish
Article number012095
JournalJournal of Physics: Conference Series
Volume391
Issue number1
DOIs
Publication statusPublished - 2012
Externally publishedYes
EventInternational Conference on Strongly Correlated Electron Systems, SCES 2011 - Cambridge, United Kingdom
Duration: 2011 Aug 292011 Sep 3

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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