The superconducting phase diagram in a model for tetragonal and cubic systems with strong antiferromagnetic correlations
| dc.creator | Deisz, J. J. | |
| dc.date | 2004-01-30 | |
| dc.date.accessioned | 2026-07-07T02:56:12Z | |
| dc.date.available | 2026-07-07T02:56:12Z | |
| dc.description | We calculate the superconducting phase diagram as a function of temperature and z-axis anisotropy in a model for tetragonal and cubic systems having strong antiferromagnetic fluctuations. The formal basis for our calculations is the fluctuation exchange approximation (FLEX) applied to the single-band Hubbard model near half-filling. For nearly cubic lattices, two superconducting phase transitions are observed as a function of temperature with the low-temperature state having the time-reversal symmetry-breaking form, $d_{x^2 - y^2} \pm id_{3z^2 -r^2}$. With increasing tetragonal distortion the time-reversal-symmetry-breaking phase is suppressed giving way to only $d_{x^2 - y^2}$ or $d_{3z^2 -r^2}$ single-component phases. Based on these results, we propose that CeIn$_3$ is a candidate for exhibiting a time-reversal symmetry-breaking superconducting state. | |
| dc.description | 4 pages, submitted to Physical Review 21 November 2003 | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0401644 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0401644 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/23232 | |
| dc.subject | Superconductivity | |
| dc.title | The superconducting phase diagram in a model for tetragonal and cubic systems with strong antiferromagnetic correlations | |
| dc.type | text |