Modulated structure analysis of the mutually incommensurate composite crystal (Sr2Cu2O3)0.70CuCO2 with two-legged spin ladder has been performed on the basis of (3+1)-dimensional superspace group approach. It has been found that the symmetry of (Sr2Cu2O3)0.70CuO2 should be described by a centrosymmetric superspace group. In the modulated composite structure of (Sr2Cu2O3)0.70CuO2, displacive modulation of O atoms in the CuO2 chain is fairly large and plays an important role. Structural interaction between the CuO2 chain and the Cu2O3 ladder has been extensively investigated.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering