Vortex matching effect in engineered thin films of NbN
arXiv:0903.4224 · doi:10.1063/1.3167771
Abstract
We report robust vortex matching effects in antidot arrays fabricated on thin films of NbN. The near absence of hysteresis between field sweep directions indicates a negligible residual pinning in the host thin film. Owing to the very small coherence length of NbN thin films ($ξ< 5 nm$), the observations suggests the possibility of probing physics of vortices at true nanometer length scales in suitably fabricated structures.
Submitted to Appl. Phys. Lett