Closed vortex state in three-dimensional mesoscopic superconducting films under an applied transport current
Leonardo Rodrigues Cadorim, Lucas Veneziani de Toledo, Wilson Aires Ortiz, Jorge Berger, Edson Sardella
DOI 10.1103/PhysRevB.107.094515 · 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
By using the full 3D generalized time-dependent Ginzbug-Landau equation, we study a long superconducting film of finite width and thickness under an applied transport current. We show that, for sufficiently large thickness, the vortices and the antivortices become curved before they annihilate each other. As they approach the center of the sample, their ends combine, producing a single closed vortex. We also determine the critical values of the thickness for which the closed vortex sets in for different values of the Ginzburg-Ladau parameter. Finally, we propose a model of how to detect a closed vortex experimentally.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Origin of the hysteresis of the current voltage characteristics of superconducting microbridges near the critical temperature
similarity 0.93D. Yu. Vodolazov & F. M. Peeters
Source status unknown — claims are unverified
Spin current in ferromagnet-insulator-superconductor junctions
similarity 0.92S. Kashiwaya et al.
Source status unknown — claims are unverified
Energy Relaxation Time between Macroscopic Quantum Levels in a Superconducting Persistent-Current Qubit
similarity 0.92Yang Yu et al.
Source status unknown — claims are unverified
Current-induced giant vortex and asymmetric vortex confinement in microstructured superconductors
similarity 0.92X. H. Chao et al.
Source status unknown — claims are unverified
Thermodynamic Study of Energy Dissipation in Adiabatic Superconductor Logic
similarity 0.92Naoki Takeuchi et al.
Source status unknown — claims are unverified
Transition from coherent mesoscopic single-particle transport to Josephson proximity current
similarity 0.92A. Geresdi et al.
Source status unknown — claims are unverified