Abstract
We experimentally studied the dynamic-state characteristics of Josephson vortices (JVs) and influence of pancake vortices (PVs) on the JV dynamics in a stack of inductively coupled Bi2Sr2CaCuO8+δ intrinsic Josephson junctions. In a few-tesla magnetic field range, we observed Josephson-vortex-flow branches (JVFBs) in the current–voltage characteristics. We show that the JVFBs are generated by the non-collective pinning (depinning) of Josephson vortices in individual junctions by (from) pancake vortices. Results of our study suggest a convenient means of controlling JVs for quantum-electronics applications utilizing stacked Josephson junctions.
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Schedule a callMore From: Journal of Superconductivity: Incorporating Novel Magnetism
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