Overcritical states of a superconductor strip in a magnetic environment
Yu. A. Genenko, A. Snezhko, H. C. Freyhardt
DOI 10.1103/PhysRevB.62.3453 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
A current-carrying superconducting strip partly penetrated by magnetic flux and surrounded by a bulk magnet of high permeability is considered. Two types of samples are studied: those with critical current controlled by an edge barrier dominating over the pinning, and those with high pinning-mediated critical current masking the edge barrier. It is shown for both cases that the current distribution in a central flux-free part of the strip is strongly affected by the actual shape of the magnetic surroundings. Explicit analytical solutions for the sheet current and self-field distributions are obtained which show that, depending on the geometry, the effect may suppress the total loss-free transport current of the strip or enhance it by orders of magnitude. The effect depends strongly on the shape of the magnet and its distance to the superconductor but only weakly on the magnetic permeability.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBCO Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 77 | Pressure not reported | unknown |
Similar papers
Overcritical states of a superconductor strip in a magnetic environment
similarity 1.00Yu. A. Genenko et al. · 2000 · arXiv:cond-mat/0008248
Source status unknown — claims are unverified
Overcritical states of a superconductor strip in all-superconducting environments
similarity 0.95Yuri A. Genenko
Source status unknown — claims are unverified
Flux-antiflux interface in type-II superconductors
similarity 0.94F. Bass et al.
Source status unknown — claims are unverified
Large Predicted Self-Field Critical Current Enhancements In Superconducting Strips Using Magnetic Screens
similarity 0.93Yu. A. Genenko et al.
Source status unknown — claims are unverified
Large Predicted Self-Field Critical Current Enhancements In Superconducting Strips Using Magnetic Screens
similarity 0.93Yu. A. Genenko et al. · 2000 · arXiv:cond-mat/0008247
Source status unknown — claims are unverified
Empirical scaling of the vortex glass line above 1 T for high-Tc superconductors of varying anisotropy
similarity 0.92B. Lundqvist et al.
Source status unknown — claims are unverified