Nbco Micro Bridge Junctions Fabricated by Excimer Laser Patterning

Abstract

Micro bridge junctions of NdBa 2 Cu 3 O 7−δ (NBCO) thin films have been fabricated by using a pulsed KrF excimer laser. A 1 µm bridge with nonliner flux-flow like currentvoltage characteristics was obtained by optimizing the laser patterning process. The superconducting current (I c0 ) across the micro bridge at zero bias was 900 nA and suppressed by the radiation of microwave (10 GHz) at 77 K.