An Empirical Pair-breaking Picture for the Non-linear Meissner Effect in d-wave Superconductors
| dc.creator | Cooper, J. R. | |
| dc.date | 2000-08-18 | |
| dc.date.accessioned | 2026-07-07T02:38:31Z | |
| dc.date.available | 2026-07-07T02:38:31Z | |
| dc.description | A empirical model is proposed for the observed variation of the London penetration depth of cuprate superconductors with applied magnetic field $H$ below the lower critical field H_c1. It is suggested that the Doppler shift of the quasi-particle energies near the d-wave nodes could cause pair-breaking and that this could be responsible for the non-linear Meissner effect (NLME) investigated in recent experiments. This picture gives a somewhat better description of the observed temperature and field dependencies than the original theory proposed by Yip and Sauls. A calculation based on weak-coupling BCS theory suggests that when there is a finite supercurrent, the state for which pairs are broken in a small angular range around the nodes can have a lower free energy than the d_x^2-y^2 state. | |
| dc.description | 6 pages, 2 column with postscript figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0008270 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0008270 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/16693 | |
| dc.subject | Superconductivity | |
| dc.title | An Empirical Pair-breaking Picture for the Non-linear Meissner Effect in d-wave Superconductors | |
| dc.type | text |