Impurity suppression of the critical temperature in the iron-based superconductors
| dc.creator | Bang, Yunkyu | |
| dc.creator | Choi, Han-Yong | |
| dc.creator | Won, Hyekyung | |
| dc.date | 2008-08-26 | |
| dc.date | 2009-03-07 | |
| dc.date.accessioned | 2026-07-07T12:49:28Z | |
| dc.date.available | 2026-07-07T12:49:28Z | |
| dc.description | We study the impurity suppression of the critical temperature $T_c$ of the FeAs superconductors theoretically based on the the $\pm$s-wave pairing state of a two band model. The effects of non-magnetic and magnetic impurities are studied with the $\mathcal{T}$-matrix approximation, which can continuously treat impurity scattering from weak to strong coupling limit. We found that both magnetic and non-magnetic impurities suppress $T_c$ with a rate that is practically indistinguishable from the standard d-wave case despite a possibly large difference of the positive and negative s-wave order parameter (OP) magnitudes. This is because the density of states enters together with the OP magnitude for the scattering process. | |
| dc.description | 4 pages, 3 figures, Refs updated. Combined version with arXiv:0808.0302 is published in PRB, but the separate short version is kept for readers | |
| dc.identifier | https://arxiv.org/abs/0808.3473 | |
| dc.identifier | http://arxiv.org/abs/0808.3473 | |
| dc.identifier | Phys. Rev. B 79, 054529 (2009) | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/222414 | |
| dc.subject | Superconductivity | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Impurity suppression of the critical temperature in the iron-based superconductors | |
| dc.type | text |