Superconductivity, Charge Orderings and Phase Separations in Systems with Local Electron Pairing
| dc.creator | Robaszkiewicz, S. | |
| dc.creator | Pawlowski, G. | |
| dc.date | 2007-02-27 | |
| dc.date.accessioned | 2026-07-07T07:49:01Z | |
| dc.date.available | 2026-07-07T07:49:01Z | |
| dc.description | We study two effective models developed for description of superconductors with short-coherence length: (i) the extended Hubbard model with on-site attraction and intersite repulsion, (ii) the model of hard-core charged bosons on a lattice. The analysis is concentrated on the problem of phase separations and competition between superconductivity (SS) and charge-density-wave (CDW) orderings. The phase diagrams of the systems are shown to consist of at least seven different states, including 3 types of phase separated (PS) states: CDW-SS (PS1), CDW-normal (PS2) and the state of electron droplets (PS3). By taking into account the PS states and the effects of longer-range density-density interactions (beyond nearest neighbours) our work substantially generalizes and modifies the conclusions of previous works concerning the models considered. | |
| dc.description | 24 pages | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0702638 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0702638 | |
| dc.identifier | Acta Phys. Pol. 90, 569 (1996) | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/124703 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Superconductivity, Charge Orderings and Phase Separations in Systems with Local Electron Pairing | |
| dc.type | text |