Structural chemistry and the local charge picture of copper oxide superconductors
Abstract
The present account of the crystal structure of known copper-oxide semiconductors emphasizes their differentiation into distinctive structural families. A hypothetical, 'local charge' picture is presented whereby the common features of all the structures can be understood; this picture is illustrated by detailed consideration of oxygen-deficient Ba2YCu3O(7-x). Local charge considerations are suggested to be important to an understanding of the electronic-doping mechanism of the copper oxide planes, in the structurally more complex materials.
- Publication:
-
Science
- Pub Date:
- February 1990
- DOI:
- 10.1126/science.247.4943.656
- Bibcode:
- 1990Sci...247..656C
- Keywords:
-
- Atomic Structure;
- Copper Oxides;
- Crystal Lattices;
- High Temperature Superconductors;
- Chemical Composition;
- Doped Crystals;
- Electrical Properties;
- Stoichiometry;
- Solid-State Physics