Magnetic-field dependence of the critical current in long Josephson junctions
S. Pagano, B. Ruggiero, E. Sarnelli
DOI 10.1103/PhysRevB.43.5364 · Physical Review B
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Abstract
The static configurations of a long Josephson junction in the presence of an external magnetic field are investigated. The theoretical analysis is based on the phase-space configurations of the perturbed sine-Gordon equation in the time-independent case. The proposed method allows one to compute in a very simple way the dependence of the Josephson current on the magnetic field for arbitrary junction lengths.
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