THRESHOLD CHARACTERISTICS OF MUTUALLY COUPLED SQUIDS.
C.C. Chi, L. Krusin-Elbaum, et al.
International Conference on Low Temperature Physics (LT) 1983
Measurements are reported of the single-particle characteristics of Nb-Al oxide-Nb superconducting tunnel junctions. Subgap leakage, subharmonic gap structure, and excess current are observed to increase systematically with increasing Josephson critical current density above a few kA/cm2. These phenomena are attributed to multiple Andreev reflections in high transmittance regions of the barrier. Such effects may significantly impact the applications of high critical current density junctions in advanced circuits.
C.C. Chi, L. Krusin-Elbaum, et al.
International Conference on Low Temperature Physics (LT) 1983
H.S.J. Van Der Zant, R.A.M. Receveur, et al.
Applied Physics Letters
A.W. Kleinsasser
Journal of Applied Physics
V. Chandrasekhar, R.A. Webb, et al.
Physical Review Letters