Nonlocal mixing of supercurrents in Josephson ballistic point contacts
Yu. A. Kolesnichenko, A. N. Omelyanchouk, S. N. Shevchenko
DOI 10.1103/PhysRevB.67.172504 · Physical Review B
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Abstract
We study coherent current states in the mesoscopic superconducting weak link simultaneously subjected to the order parameter phase difference φ on the contact and to the tangential to the junction interface superfluid velocity vs in the banks. The Josephson current-phase relation IJ(φ) controlled by the external transport current IT(vs) is obtained. At φ close to π the nonlocal nature of the Josephson phase-dependent current results in the appearance of two vortexlike states in the vicinity of the contact.
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