Superconducting Transition and Vortex Pinning in Nb Films Patterned with Nano-scale Hole-arrays

U. Welp, Z. L. Xiao, J. S. Jiang +6

Nb films containing extended arrays of holes with 45-nm diameter and 100-nm spacing have been fabricated using anodized aluminum oxide (AAO) as substrate. Pronounced matching effec…