Semi-fluxons in long Josephson 0-pi-junctions

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dc.creatorGoldobin, E.
dc.creatorKoelle, D.
dc.creatorKleiner, R.
dc.date2002-07-31
dc.date.accessioned2026-07-07T02:46:39Z
dc.date.available2026-07-07T02:46:39Z
dc.descriptionWe investigate analytically long Josephson junctions with phase pi-discontinuity points. Such junctions are usually fabricated as a ramp between a superconductor like YBCO with d-wave symmetry of the order parameter and an s-wave superconductor like Nb. From the top, they look like zigzags with pi-jumps of the Josephson phase at the corners. These pi-jumps, at certain conditions, lead to the formation of half-integer flux quanta, which we call semi-fluxons, pinned at the corners. We derive a version of sine-Gordon equation which describes the dynamics of the Josephson phase in such structures, and obtain an explicit formula which describes the shape of a semi-fluxon. Some properties of semi-fluxons are discussed. We propose a way to construct artificial pi-junctions using only s-wave superconductors.
dc.description4 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0207742
dc.identifierhttp://arxiv.org/abs/cond-mat/0207742
dc.identifierPhys. Rev B 66, 100508(R) (2002)
dc.identifierdoi:10.1103/PhysRevB.66.100508
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/19708
dc.subjectSuperconductivity
dc.subjectPattern Formation and Solitons
dc.titleSemi-fluxons in long Josephson 0-pi-junctions
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