Fluctuation Effect in Superconductivity in an Electron Model with d-Wave Attraction
| dc.creator | Yan, Xin-Zhong | |
| dc.date | 2001-07-05 | |
| dc.date | 2001-10-17 | |
| dc.date.accessioned | 2026-07-07T02:42:03Z | |
| dc.date.available | 2026-07-07T02:42:03Z | |
| dc.description | On the basis of $t$-matrix approximation, we study the superconductivity in the tight-binding model with d-wave attraction. The low-lying collective modes are considered as the predominant long-range fluctuations in the system. The Green's function is obtained as an analytic solution to a cubic equation. The superconducting order parameter and the transition temperature are substantially reduced from the values of the mean-field theory. The results for the pseudogap parameter at $T_c$ are compared with experiments. The calculated phase boundary of the superconductivity can reasonably describe the experiment results for the cuprates. The results for density of states are presented. | |
| dc.description | 4 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0107099 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0107099 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/17984 | |
| dc.subject | Superconductivity | |
| dc.title | Fluctuation Effect in Superconductivity in an Electron Model with d-Wave Attraction | |
| dc.type | text |