Abstract
The temperature-concentration phase diagram of doped bismuthate superconductors is described using a coarse grained anisotropic Heisenberg model. In contrast to previous treatments, we find a robust region of coexistence between the charge density wave (CDW) and the superconducting phases. Random fields break the CDW phase into metastable domains, which may explain various recent experiments. A partial Meissner effect without bulk superconductivity is predicted at low doping concentrations and at low temperatures.
| Original language | English |
|---|---|
| Pages (from-to) | 1874-1877 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 70 |
| Issue number | 12 |
| DOIs | |
| State | Published - 1 Jan 1993 |
| Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy