Anomalous Josephson Current in Junctions with Spin-Polarizing Quantum Point Contacts

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dc.creatorReynoso, A. A.
dc.creatorUsaj, Gonzalo
dc.creatorBalseiro, C. A.
dc.creatorFeinberg, D.
dc.creatorAvignon, M.
dc.date2008-08-11
dc.date.accessioned2026-07-07T10:02:28Z
dc.date.available2026-07-07T10:02:28Z
dc.descriptionWe consider a ballistic Josephson junction with a quantum point contact in a two-dimensional electron gas with Rashba spin-orbit coupling. The point contact acts as a spin filter when embedded in a circuit with normal electrodes. We show that with an in-plane external magnetic field an anomalous supercurrent appears even for zero phase difference between the superconducting electrodes. In addition, the external field induces large critical current asymmetries between the two flow directions, leading to supercurrent rectifying effects.
dc.description4 pages, 4 figures, to appear in PRL
dc.identifierhttps://arxiv.org/abs/0808.1516
dc.identifierhttp://arxiv.org/abs/0808.1516
dc.identifierPhys. Rev. Lett. 101, 107001 (2008)
dc.identifierdoi:10.1103/PhysRevLett.101.107001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/168983
dc.subjectMesoscale and Nanoscale Physics
dc.subjectSuperconductivity
dc.titleAnomalous Josephson Current in Junctions with Spin-Polarizing Quantum Point Contacts
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