Large Predicted Self-Field Critical Current Enhancements In Superconducting Strips Using Magnetic Screens
arXiv:cond-mat/0008247 · doi:10.1103/PhysRevLett.83.3045
Abstract
A transport current distribution over a wide superconducting sheet is shown to strongly change in a presence of bulk magnetic screens of a soft magnet with a high permeability. Depending on the geometry, the effect may drastically suppress or protect the Meissner state of the sheet through the enhancement or suppression of the edge barrier critical current. The total transport current in the magnetically screened Meissner state is expected to compete with the critical current of the flux-filled sheet only for samples whose critical current is initially essentially controlled by the edge barrier effect.
6 figures
Cited by in corpus (19)
- Nucleation of superconductivity and vortex matter in superconductor - ferromagnet hybrids
- Overcritical states of a superconductor strip in a magnetic environment
- Analytical investigation of magnetic field distributions around superconducting strips on ferromagnetic substrates
- Considerable enhancement of the critical current in a superconducting film by magnetized magnetic strip
- Mesoscopic field and current compensator based on a hybrid superconductor-ferromagnet structure
- Overcritical state in superconducting round wires sheathed by iron
- Entry of magnetic flux into a magnetically shielded type-II superconductor filament
- Virgin magnetization of a magnetically shielded superconductor wire: theory and experiment
- Superconductor/ferromagnet heterostructures exhibit potential for significant reduction of hysteretic losses
- The Bean-Livingston barrier at a superconductor/magnet interface
- Spin-wave confinement in a hybrid superconductor-ferrimagnet nanostructure
- Distribution of the sheet current in a magnetically shielded superconducting filament
- Penetration of an external magnetic field into a multistrip superconductor/soft-magnet heterostructure
- Superconductor strip in a closed magnetic environment: exact analytic representation of the critical state
- Magnetic dipole-vortex interaction in a bilayer superconductor/soft-magnet heterostructure
- The Bean model of the critical state in a magnetically shielded superconductor filament
- Strong reduction of ac losses in a superconductor strip located between superconducting ground plates
- Magnetic-dipole induced appearance of vortices in a bilayered superconductor/soft-magnet heterostructure
- Magneto-optical investigations of Ag-sheathed Bi-2223 tapes with ferromagnetic shielding