Tunable spin Hall effect by Stern-Gerlach diffraction

Jun-Qiang Lu, X.-G. Zhang, and Sokrates T. Pantelides
Phys. Rev. B 74, 245319 – Published 18 December 2006

Abstract

We propose an effect based on simultaneous real- and reciprocal-space magnetic inhomogeneities, combining features of the Stern-Gerlach and both the intrinsic and extrinsic spin Hall effects. The known difficulties of directly observing the spin Hall effect are circumvented as spin currents generated from the effect are well-defined, dissipative, and detectable. Simulations of a specific system are used to illustrate wide tunability, allowing formation of a periodic “spin lattice” distinct from the “charge lattice,” selective polarization flipping, or spin current detection. Similar effects can be produced by photons and neutrons.

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  • Received 6 November 2006

DOI:https://doi.org/10.1103/PhysRevB.74.245319

©2006 American Physical Society

Authors & Affiliations

Jun-Qiang Lu and X.-G. Zhang

  • Center for Nanophase Materials Sciences, and Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

Sokrates T. Pantelides

  • Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235, USA and Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

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Issue

Vol. 74, Iss. 24 — 15 December 2006

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