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Higher order Shapiro steps in ac-driven Josephson junctions by Rasmussen, Kim O.; Zharnitsky, Vadim; Mitkov, Igor; Grønbech-Jensen, Niels is a scholarly article available to read on EtoBox.

What is Higher order Shapiro steps in ac-driven Josephson junctions about?

We demonstrate that the well known phase-locking mechanism leading to Shapiro steps in ac-driven Josephson junctions is always accompanied by a higher order phase-locking mechanism similar to that of the parametrically driven pendulum. This effect, resulting in a $\pi$-periodic effective potential for the phase, manifests itself clearly in the parameter regions where the usual Shapiro steps are expected to vanish.

Author

Rasmussen, Kim O.; Zharnitsky, Vadim; Mitkov, Igor; Grønbech-Jensen, Niels

Published

1998

Language

EN