Influence of the Nonequilibrium Superconductivity Effect on the Quasiparticle Current-Voltage Characteristics of Intrinsic Tunnel Josephson Junctions
- 1 April 1996
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 35 (4B) , L482
- https://doi.org/10.1143/jjap.35.l482
Abstract
We have numerically evaluated the influence of the nonequilibrium heating effect on the quasiparticle current-voltage (I–V) characteristics of a superconductor-insulator-superconductor tunnel junction made of a two-dimensional d-wave superconductor based on two different models. It is found that the self-injection of quasiparticle current causes significant I–V curve deformation due to the influence of the nonequilibrium superconductivity effect. The results are applied to the I–V curves observed in Bi-2212 intrinsic tunnel Josephson junctions to obtain a good agreement. The difference between the nonequilibrium superconductivity effect and simple Joule heating is discussed.Keywords
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