Submicron Sized, High Current Density Nb/PbBi Window Tunnel Junctions
We have fabricated high quality, submicron sized Nb/PbBi window tunnel junctions suitable for sub-mm wave applications. The junctions had critical current densities in the range 20–4*104 A/cm2 and reproducible areas from 0.03 to 5 μm2. The junction quality (Vm~20 mV) did not depend on the junction size down to 0.2 μm2.
KeywordsAcetone PMMA Polyimide NiCr Undercut
Unable to display preview. Download preview PDF.
- H.K. Olsson, IEEE Trans. Magn. MAG-25, 1115, (1989).Google Scholar