rf-induced steps in intermediate length Josephson-tunnel junctions

Abstract
We report on the behavior of the rf‐induced steps in unidimensional Josephson‐tunnel junctions having overlap geometry and length L≊λj. We have investigated the response of the junctions to the rf current in a range of frequency covering the geometrical resonance of the junctions. The experimental data are compared with the predictions of a model based on a multimode expansion of the junction phase.