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Department of Physics, University of Jyväskylä, P.O.Box 35,
FIN-40014 University of Jyväskylä, Finland
| The fabrication of Niobium-based junctions is a well-known difficult problem in nanotechnology. Here we report on the fabrication of single Nb/(Al-) AlOx /Al junctions using two-angle beam lithography and on their subsequent I-V measurement. The structures that we succeeded to fabricate display pronounced Josephson-effect features and a fairly steep quasiparticle current at the gap energy. |
full paper (pdf, 162 Kb)