Giant Spin-Hall Effect induced by Zeeman Interaction in Graphene

Details Giant Spin-Hall Effect induced by Zeeman Interaction in Graphene Giant Spin-Hall Effect induced by Zeeman Interaction in Graphene

2011-03-24

arxiv.org/abs/1103.4742v1

Phys. Rev. Lett. 107, 096601 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevLett.107.096601

We propose a new approach to generate and detect spin currents in graphene, based on a large spin-Hall response arising near the neutrality point in the presence of external magnetic field. Spin currents result from the imbalance of the Hall resistivity for the spin-up and spin-down carriers induced by Zeeman interaction, and do not involve spin-orbit interaction. Large values of the spin-Hall response achievable in moderate magnetic fields produced by on-chip sources, and up to room temperature, make the effect viable for spintronics applications.

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