Abstract
The flux-flow dynamics in a long Josephson junction is studied for the in-line and overlap geometry. A simple analytical model, reported recently for the overlap case, is extended to include asymmetric boundary conditions resulting from the self-field effects. Analytical results are compared with numerical simulations both for the magnetic field patterns within the junction and for the current–voltage (I–V) characteristics. It is shown that, depending on the junction geometry, the self-field distribution may affect considerably the fluxon dynamics and consequently working conditions of the flux-flow oscillator.
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