Journal article
Phase locking and flux-flow resonances in Josephson oscillators driven by homogeneous microwave fields
We investigate both analytically and numerically phase locking and flux-flow resonances of long Josephson junctions in the presence of homogeneous microwave fields. We use a power balance analysis and a perturbation expansion around the uniform rotating solution to derive analytical expressions for IV curves.
The dependence of the flux-flow step on the amplitude of the rf field and the appearance of satellite steps are explained. As a result we show that satellite steps around the main flux-flow resonance are spaced by both odd and even harmonics of the rf frequency. An analytical expression for the locking range in current of the phase-lock steps is also derived.
These results are found to be in good agreement with numerical results.
Language: | English |
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Year: | 1999 |
Pages: | 14653-14658 |
ISSN: | 1550235x , 24699950 , 10953795 and 01631829 |
Types: | Journal article |
DOI: | 10.1103/PhysRevB.59.14653 |