Spin transport in a graphene normal-superconductor junction in the quantum Hall regime
arXiv:1807.06975 · doi:10.1103/PhysRevB.98.195418
Abstract
The quantum Hall regime of graphene has many unusual properties. In particular, the presence of a Zeeman field opens up a region of energy within the zeroth Landau level, where the spin-up and spin-down states localized at a single edge propagate in opposite directions. We show that when these edge states are coupled to an s-wave superconductor, the transport of charge carriers is spin-filtered. This spin-filtering effect can be traced back to the interplay of specular Andreev reflections and Andreev retro-reflections in the presence of a Zeeman field.
arXiv comment6 pages, 7 figures
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Cited by in corpus (4)
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- Well-defined Fano effect in the Andreev reflection process of a parallel double-quantum-dot structure
- SU(4) Symmetry Breaking and Induced Superconductivity in Graphene Quantum Hall Edges
- Heat-charge separation in a hybrid superconducting quantum Hall setup