Charge and spin transport on graphene grain boundaries in a quantizing magnetic field

Abstract

We study charge and spin transport along grain boundaries in single layer graphene in the presence of a quantizing magnetic field. Transport states in a grain boundary are produced by hybridization of Landau zero modes with interfacial states. In selected energy regimes quantum Hall edge states can be deflected either fully or partially into grain boundary states. The degree of edge state deflection is studied in the nonlocal conductance and in the shot noise. We also consider the possibility of grain boundaries as gate-switchable spin filters, a functionality enabled by counterpropagating transport channels laterally confined in the grain boundary.

4 pages, 5 figures; includes 5 page Supplemental Material

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Cited by in corpus (7)

• Visualizing Strain-induced Pseudo magnetic Fields in Graphene through an hBN Magnifying Glass
• Scale-invariant large nonlocality in polycrystalline graphene
• Magnetic states of linear defects in graphene monolayers: effects of strain and interaction
• Aharonov-Bohm interferences in polycrystalline graphene
• Electrically Tunable Spin Exchange Splitting in Graphene Hybrid Heterostructure
• Domain walls in strontium titanate
• Effects of domain walls in bilayer graphene in an external magnetic field