Giant Spin-Hall Effect Induced by the Zeeman Interaction in Graphene

D. A. Abanin, R. V. Gorbachev, K. S. Novoselov, A. K. Geim, and L. S. Levitov
Phys. Rev. Lett. 107, 096601 – Published 23 August 2011
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Abstract

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 an external magnetic field. Spin currents result from the imbalance of the Hall resistivity for the spin-up and spin-down carriers induced by the Zeeman interaction, and do not involve a 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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  • Received 21 March 2011

DOI:https://doi.org/10.1103/PhysRevLett.107.096601

© 2011 American Physical Society

Authors & Affiliations

D. A. Abanin1, R. V. Gorbachev2, K. S. Novoselov2, A. K. Geim2, and L. S. Levitov3

  • 1Princeton Center for Theoretical Science and Department of Physics, Princeton University, Princeton, New Jersey 08544, USA
  • 2Manchester Centre for Mesoscience and Nanotechnology, University of Manchester, Manchester M13 9PL, United Kingdom
  • 3Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

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Issue

Vol. 107, Iss. 9 — 26 August 2011

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