The minimum model for the iron-based superconductors
| dc.creator | Li, Jian | |
| dc.creator | Wang, Yupeng | |
| dc.date | 2008-05-06 | |
| dc.date.accessioned | 2026-07-07T09:37:14Z | |
| dc.date.available | 2026-07-07T09:37:14Z | |
| dc.description | A single band $t$-$U$-$J_1$-$J_2$ model is proposed as the minimum model to describe the superconductivity of the newly discovered iron-based superconductors $R(O_{1-x}F_x)FeAs$ and $RO_{1-x}FeAs$ ($R=La, Ce, Sm, Pr, Nd,Gd$). With the mean-field approach, it is found that the pairing occurs in the d-wave channel. In the likely parameter region of the real materials, by lowering temperature, the system enters firstly the $d_{xy}$ superconducting phase with $D_{4h}$-symmetry and then enters the time-reversal-symmetry-broken $d_{xy}+id_{x^2-y^2}$ superconducting phase with $C_{4h}$-symmetry. | |
| dc.description | 3 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/0805.0644 | |
| dc.identifier | http://arxiv.org/abs/0805.0644 | |
| dc.identifier | Chin. Phys. Lett. 25, No.6(2008)2232 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/160387 | |
| dc.subject | Superconductivity | |
| dc.title | The minimum model for the iron-based superconductors | |
| dc.type | text |