Abstract
The electronic structure of BaPb1-xBixO3 is calculated taking into account the local disproportionation of the Bi atoms within the coherent-potential approximation. Three different regimes are obtained as a function of the Bi concentration x: normal metal, metallic with a pseudogap, and insulating phase. This allows a satisfactory interpretation of the optical properties, resistivity, Hall, and Seebeck measurements. The agreement is improved when the many-body effects due to the covalency of the Bi-O bonding, invoked previously for the superconductivity, are also considered.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 9701-9703 |
| Number of pages | 3 |
| Journal | Physical Review B |
| Volume | 39 |
| Issue number | 13 |
| DOIs | |
| State | Published - 1989 |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics