Vortex-Antivortex Nucleation in Magnetically Nanotextured Superconductors: Magnetic-Field-Driven and Thermal Scenarios
M. V. Milošević, F. M. Peeters
DOI 10.1103/PhysRevLett.94.227001 · Physical Review Letters
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
Within the Ginzburg-Landau formalism, we predict two novel mechanisms of vortex-antivortex nucleation in a magnetically nanostructured superconductor. Although counterintuitive, nucleation of vortex-antivortex pairs can be activated in a superconducting (SC) film covered by arrays of submicron ferromagnets (FMs) when exposed to an external homogeneous magnetic field. In another scenario, we predict the thermal induction of vortex-antivortex configurations in SC-FM samples. This phenomenon leads to a new type of Little-Parks oscillations of the FM magnetization-temperature phase boundary of the SC film.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Pb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| 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
Vortex-Antivortex Lattices in Superconducting Films with Magnetic Pinning Arrays
similarity 0.97M. V. Milošević & F. M. Peeters
Source status unknown — claims are unverified
Vortex Avalanches and Magnetic Flux Fragmentation in Superconductors
similarity 0.97Igor Aranson et al.
Source status unknown — claims are unverified
Thermally assisted penetration and exclusion of single vortex in mesoscopic superconductors
similarity 0.96Shi-Zeng Lin et al.
Source status unknown — claims are unverified
Tuning vortex fluctuations and the resistive transition in superconducting films with a thin overlayer
similarity 0.96Alex Gurevich
Source status unknown — claims are unverified
Directional driving of superconducting vortex lines with an oscillating magnetic field
similarity 0.95A.E. Koshelev
Source status unknown — claims are unverified
Oscillatory regimes of the thermomagnetic instability in superconducting films
similarity 0.94J. I. Vestgården et al.
Source status unknown — claims are unverified