Fermi-Liquid Theory for Anisotropic Superconductors
| dc.creator | Walker, M. B. | |
| dc.date | 2000-10-05 | |
| dc.date | 2000-10-31 | |
| dc.date.accessioned | 2026-07-07T02:38:56Z | |
| dc.date.available | 2026-07-07T02:38:56Z | |
| dc.description | This article develops a Fermi-liquid theory for superconductors with anisotropic Fermi surfaces, Fermi-liquid interactions, and energy gaps. For d-wave superconductors, the Fermi-liquid interaction effects are found to be classifiable into strong and negligible renormalizaton effects, for symmetric and antisymmetric combinations of the energies of $k\uparrow$ and $-k\downarrow$ quasiparticles, respectively. Furthermore, the leading clean-limit temperature-dependent correction to the superfluid density in a d-wave superconductor is found to be renormalized by a Fermi velocity (or mass) renormalization effect. The question is raised of whether or not the penetration depth in the high temperature superconductor YBa$_2$Cu$_3$O$_{6+x}a$ can be accounted for with physically acceptable parameters within the framework of a quasiparticle model. Fermi-liquid corrections to the spin susceptibility and to the zero-energy magnetic-field-induced density of states are also evaluated. | |
| dc.description | 9 pages. The previous version of this article contained an incorrect proof and incorrect results (the previous Eqs. 26 and 27) | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0010086 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0010086 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/16870 | |
| dc.subject | Superconductivity | |
| dc.title | Fermi-Liquid Theory for Anisotropic Superconductors | |
| dc.type | text |