Abstract
New theoretical and experimental results on double-barrier SIS'IS Josephson junctions are presented (I is a tunnel barrier, S' is a thin film with critical temperature lower than that of S). The previously developed microscopic model for the stationary case, which describes the critical currents in Nb/Al/Nb junctions, is extended to the non-equilibrium regime of finite voltage. In particular, an intrinsic shunting resistance is estimated from I-V curves. We formulate the requirements for interface barriers in order to realize non-hysteretic SIS'IS junctions with high critical current density and IcR N products. A comparison with single-barrier SIS junctions with high critical current density is carried out
Original language | Undefined |
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Pages (from-to) | 1146-1149 |
Journal | IEEE transactions on applied superconductivity |
Volume | 11 |
Issue number | 1, Par |
DOIs | |
Publication status | Published - 2001 |
Keywords
- IR-55661