Physics – Condensed Matter – Superconductivity
Scientific paper
2001-04-09
Physics
Condensed Matter
Superconductivity
8 text pages + 4 figures
Scientific paper
10.1103/PhysRevB.65.094509
Driven vortex lattices have been studied in a material with strong pinning, such as Nb films. Samples in which natural random pinning coexists with artificial ordered arrays of defects (submicrometric Ni dots) have been fabricated with different geometries (square, triangular and rectangular). Three different dynamic regimes are found: for low vortex velocities, there is a plastic regime in which random defects frustrate the effect of the ordered array; then, for vortex velocities in the range 1-100 m/s, there is a sudden increase in the interaction between the vortex lattice and the ordered dot array, independent on the geometry. This effect is associated to the onset of quasi long range order in the vortex lattice leading to an increase in the overlap between the vortex lattice and the magnetic dots array. Finally, at larger velocities the ordered array-vortex lattice interaction is suppresed again, in agreement with the behavior found in numerical simulations.
Guinea Francisco
Jaque D.
Martin J. I.
Velez Mario
Vicent J. L.
No associations
LandOfFree
Order in driven vortex lattices in superconducting Nb films with nanostructured pinning potentials does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Order in driven vortex lattices in superconducting Nb films with nanostructured pinning potentials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Order in driven vortex lattices in superconducting Nb films with nanostructured pinning potentials will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-626403