Spin Injection into a Graphene Thin Film at Room Temperature

Abstract

We demonstrate spin injection into a graphene thin film with high reliability by using non-local magnetoresistance (MR) measurements, in which the electric current path is completely separated from the spin current path. Using these non-local measurements, an obvious MR effect was observed at room temperature; and the MR effect was ascribed to magnetization reversal of ferromagnetic electrodes. This result is a direct demonstration of spin injection into a graphene thin film. Furthermore, this is the first report of spin injection into molecules at room temperature.

12 pages, 3 figures

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• Dynamically-generated pure spin current in single-layer graphene
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• Spin-polarized transport through domain wall in magnetized graphene
• Impurity assisted nanoscale localization of plasmonic excitations in graphene
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• Analysis of Degradation in Graphene-based Spin Valves
• Magneto-transport in impurity-doped few-layer graphene spin valve
• Time-dependent magneto-transport in a driven graphene spin valve
• Electron spin diffusion at the interface of multiferroic oxides
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• On the origin of the giant spin detection efficiency in tunnel barrier based electrical spin detector
• Edge states in a honeycomb lattice: effects of anisotropic hopping and mixed edges
• Spin Relaxation in Weak Localization Regime in Multilayer Graphene Spin Valves