Luqiao Liu, Takahiro Moriyama, D. C. Ralph, R. A. Buhrman
Published 2010-11-11Version 1
We demonstrate that the spin Hall effect in a thin film with strong spin-orbit scattering can excite magnetic precession in an adjacent ferromagnetic film. The flow of alternating current through a Pt/NiFe bilayer generates an oscillating transverse spin current in the Pt, and the resultant transfer of spin angular momentum to the NiFe induces ferromagnetic resonance (FMR) dynamics. The Oersted field from the current also generates an FMR signal but with a different symmetry. The ratio of these two signals allows a quantitative determination of the spin current and the spin Hall angle.
Effect of anisotropic spin absorption on the Hanle effect in lateral spin valves
Spin Currents in Metallic Nanostructures; Explicit Calculations
Generation of spin currents and spin densities in systems with reduced symmetry
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