|Title||Interaction of Josephson junction and distant vortex in narrow thin-film superconducting strips|
|Publication Type||Journal Article|
|Year of Publication||2014|
|Authors||Kogan, VG, Mints, RG|
|Journal||Physical Review B|
|Type of Article||Article|
The phase difference between the banks of an edge-type planar Josephson junction crossing the narrow thin-film strip depends on wether or not vortices are present in the junction banks. For a vortex close to the junction this effect has been seen by Golod, Rydh, and Krasnov [Phys. Rev. Lett. 104, 227003 (2010)], who showed that the vortex may turn the junction into pi type. It is shown here that even if the vortex is far away from the junction, it still changes the 0 junction to a pi junction when situated close to the strip edges. Within the approximation used, the effect is independent of the vortex-junction separation, a manifestation of the topology of the vortex phase which extends to macroscopic distances of superconducting coherence.
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