Nb/yttria-stabilized-zirconia/Nb nonhysteretic Josephson junctions

Lam, S. K. H.; Gnanarajan, S.
July 2003
Applied Physics Letters;7/28/2003, Vol. 83 Issue 4, p716
Academic Journal
Yttria-stabilized zirconia (YSZ) is used as an insulating barrier for the fabrication of niobium edge junctions. Using the ion beam assisted deposition technique, Nb/YSZ/Nb edge junctions with YSZ thin film of a few nanometers in thickness have been fabricated. The junctions are nonhysteretic with critical current densities up to 4 mA/µm² and critical current normal resistance products of ∼1 mV.


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