Phase lock of a weakly biased inhomogeneous long Josephson junction to an external microwave source
G. Reinisch, J. C. Fernandez, N. Flytzanis, M. Taki, S. Pnevmatikos
DOI 10.1103/PhysRevB.38.11284 · Physical Review B
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Abstract
Large-scale spatial inhomogeneities in a long Josephson junction, where fluxons may be trapped, allow the existence of stable periodic dynamical regimes locked to the external frequency or twice this frequency, and biased with a very weak external current. These regimes lead to an abrupt cutoff located at the bottom of the zero-field step in the corresponding current-voltage characteristics. Such an easily detectable effect strongly suggests an experimental verification of this phase-locked soliton dynamics.
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