Vortex states in superconducting rings
| Autor: | B. J. Baelus, V. A. Schweigert, François M. Peeters |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Superconductivity
Physics Condensed Matter - Mesoscale and Nanoscale Physics Condensed matter physics Condensed Matter - Superconductivity Astrophysics::High Energy Astrophysical Phenomena Demagnetizing field FOS: Physical sciences Flux State (functional analysis) Radius Vortex Superconductivity (cond-mat.supr-con) General Relativity and Quantum Cosmology Nonlinear system Condensed Matter::Superconductivity Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Astrophysics::Earth and Planetary Astrophysics Circular symmetry |
| Zdroj: | Physical review : B : condensed matter and materials physics |
| ISSN: | 1095-3795 0163-1829 1098-0121 |
| DOI: | 10.1103/physrevb.61.9734 |
| Popis: | The superconducting state of a thin superconducting disk with a hole is studied within the non-linear Ginzburg-Landau theory in which the demagnetization effect is accurately taken into account. We find that the flux through the hole is not quantized, the superconducting state is stabilized with increasing size of the hole for fixed radius of the disk, and a transition to a multi-vortex state is found if the disk is sufficiently large. Breaking the circular summetry through a non central location of the hole in the disk enhances the multi-vortex state. 11 pages, 23 figures (postscript). To appear in Physical Review B, Vol. 61 (2000) |
| Databáze: | OpenAIRE |
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