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.
|Journal||Journal of Physics: Conference Series|
|Publication status||Published - 2012|
|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)