- The Crystallographic Society of Japan
- 日本結晶学会誌 (ISSN:03694585)
- vol.34, no.5, pp.273-282, 1992-10-30 (Released:2010-09-30)
The current status of oxide superconductors is briefly reviewed from a crystal structure perspective. Tokura et al. recently classified high-temperature superconductors using block layer concept. We propose a new “layer” concept and discuss the possibility of new block layers by reconstructing the layers. As an example, we present new high-Tc materials containing CO3 by combining an “old” and new block layers recently discovered. Finally, main roles for realizing the high-Tc superconductors are discussed from the structural point of view.