Effect of ac Impedance on dc Voltage-Current Characteristics of Superconductor Weak-Link Junctions
- 1 June 1968
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 39 (7) , 3113-3118
- https://doi.org/10.1063/1.1656743
Abstract
Because the Josephson pair current in a weak‐link superconductor junction is a nonlinear parametric function of junction voltage, the ac impedance seen by the junction influences both the response time to changes in bias and the dc voltage‐current characteristics. The first effect is obvious; the second, considered here, has not been generally recognized. Both are relevant to device design. Two special cases which illustrate the basic principles involved are worked out in detail; they correspond, respectively, to ac capacitive and inductive loading. The results partly explain differences in the dc voltage‐current characteristics of plane‐parallel and point‐contact junctions.This publication has 17 references indexed in Scilit:
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