Thickness dependence of critical currents in thin superconductors
| dc.creator | Gurevich, A. | |
| dc.date | 2002-07-22 | |
| dc.date.accessioned | 2026-07-07T02:46:24Z | |
| dc.date.available | 2026-07-07T02:46:24Z | |
| dc.description | Mechanisms of vortex dynamics and pinning and self-field effects which could account for the thickness dependence of the critical current density J_c of superconducting films are addressed. It is shown that at low magnetic fields B, the 2D single-vortex pinning and thermal fluctuations yield J_c proportional to (1/sqrt{d})exp[-(d_m/d)^{1/2}], if the film thickness d is smaller than the pinning correlation length along B. The model describes the dependence of J_c on d observed on YBa_2Cu_3O_7 coated conductors for d < 2(mu)m. Measurements of J_c(d) in strong magnetic fields are proposed to probe whether the dependence of J_c on d is mostly determined by the 2D pinning or changes in the material microstructure as the film gets thicker. | |
| dc.description | 3 pages, 2 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0207526 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0207526 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/19656 | |
| dc.subject | Superconductivity | |
| dc.title | Thickness dependence of critical currents in thin superconductors | |
| dc.type | text |