Abstract
We report the observation of chaotic noise in Josephson tunnel junctions in the presence of a dc current and irradiated with microwave radiation. Four different chaotic phenomena have been measured associated to either anomalies in the characteristics and/or high noise temperatures, with chaotic noise temperatures as high as K. A new chaotic mode is reported consisting of a recurrent smoothing of large sections of the characteristic for certain values of microwave power. The resistively shunted junction model is shown to contain most of the observed phenomena.
- Received 7 February 1984
DOI:https://doi.org/10.1103/PhysRevB.30.1586
©1984 American Physical Society