Missing valence states, diamagnetic insulators, and superconductors
Abstract
About fifteen elements in the periodic table skip certain valences in all the compounds they form. This is understood to arise from a negative effective intra-atomic interaction. A model with such interactions as well as interatomic repulsions gives insulating behavior near half-filling and superconductivity farther from it, in agreement with the properties of BaPbxBi1-xO3 and BaxK1-xBiO3.
- Publication:
-
Physical Review Letters
- Pub Date:
- December 1988
- DOI:
- 10.1103/PhysRevLett.61.2713
- Bibcode:
- 1988PhRvL..61.2713V
- Keywords:
-
- Atomic Interactions;
- Diamagnetism;
- Insulation;
- Mixed Oxides;
- Superconductors;
- Valence;
- Conduction Bands;
- Electron Phonon Interactions;
- Ground State;
- Transition Temperature;
- Solid-State Physics;
- 74.10.+v;
- 74.65.+n;
- Occurrence potential candidates