Dynamics of semifluxons in Nb long Josephson 0-pi junctions

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dc.creatorGoldobin, E.
dc.creatorSterck, A.
dc.creatorGaber, T.
dc.creatorKoelle, D.
dc.creatorKleiner, R.
dc.date2003-11-26
dc.date.accessioned2026-07-07T02:54:59Z
dc.date.available2026-07-07T02:54:59Z
dc.descriptionWe propose, implement and test experimentally long Josephson 0-pi junctions fabricated using conventional Nb-AlOx-Nb technology. We show that using a pair of current injectors, one can create an arbitrary discontinuity of the Josephson phase and in particular a pi-discontinuity, just like in d-wave/s-wave or in d-wave/d-wave junctions, and study fractional Josephson vortices which spontaneously appear. Moreover, using such junctions, we can investigate the \emph{dynamics} of the fractional vortices -- a domain which is not yet available for natural 0-pi-junctions due to their inherently high damping. We observe half-integer zero-field steps which appear on the current-voltage characteristics due to hopping of semifluxons.
dc.descriptionFractional vortices in conventional superconductors ;-)
dc.identifierhttps://arxiv.org/abs/cond-mat/0311610
dc.identifierhttp://arxiv.org/abs/cond-mat/0311610
dc.identifierPhys. Rev. Lett. 92, 057005 (2004)
dc.identifierdoi:10.1103/PhysRevLett.92.057005
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/22782
dc.subjectSuperconductivity
dc.titleDynamics of semifluxons in Nb long Josephson 0-pi junctions
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