Josephson effect due to the long-range odd-frequency triplet superconductivity in SFS junctions with Neel domain walls

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dc.creatorFominov, Ya. V.
dc.creatorVolkov, A. F.
dc.creatorEfetov, K. B.
dc.date2006-10-16
dc.date2007-03-22
dc.date.accessioned2026-07-07T07:52:59Z
dc.date.available2026-07-07T07:52:59Z
dc.descriptionWe consider a SFS Josephson junction made of two superconductors S and a multidomain ferromagnet F with an in-plane magnetization. We assume that the neighboring domains of the ferromagnet are separated by Neel domain walls. An odd-frequency triplet long-range component of superconducting correlations arises in the domain walls and spreads into the domains over a long distance of the order $ξ_T = \sqrt{D / 2 πT}$, where $D$ is the diffusion coefficient (dirty limit is implied). We calculate the contribution of this component to the Josephson current in the situation when conventional short-range components exponentially decay over the thickness of the F layer and can be neglected. In the limit when the thickness of the F layer is much smaller than the penetration length of the long-range component, we find that the junction is in the $π$ state. We also analyze a correction to the density of states due to the long-range triplet component.
dc.description12 pages (including 6 EPS figures)
dc.identifierhttps://arxiv.org/abs/cond-mat/0610440
dc.identifierhttp://arxiv.org/abs/cond-mat/0610440
dc.identifierPhys. Rev. B 75, 104509 (2007)
dc.identifierdoi:10.1103/PhysRevB.75.104509
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/126082
dc.subjectSuperconductivity
dc.subjectMesoscale and Nanoscale Physics
dc.titleJosephson effect due to the long-range odd-frequency triplet superconductivity in SFS junctions with Neel domain walls
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