Spin-torque ferromagnetic resonance induced by the spin Hall effect.
By Luqiao Liu, T. Moriyama, D. Ralph, Robert A. Buhrman. Physical Review Letters, 2010
1,271 citations recorded by the source corpus.
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 dynamics. The Oersted field from the current also generates a ferromagnetic resonance 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.
Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics
View Paper: https://www.semanticscholar.org/paper/6508b7c058c9543786bf1889654f37d896c55dac
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In Atomic and Molecular Physics, and Optics
In Condensed Matter Physics
Citations in the corpus
- Stochastic p-bits for Invertible Logic (2016, background): “3(e) is normalized to the geometric gain factor that relates the charge current to the spin current exerted [37,38]:”
- Magnetism, symmetry and spin transport in van der Waals layered systems (2021, positive): “In 2D materials, the SOT originates solely from the current-induced spin density in the material.”
- Giant orbital Hall effect and orbital-to-spin conversion in 3d, 5d, and 4f metallic heterostructures (2022, methodology): “In this regard, we notice that the spin diffusion model has found widespread use in the quantitative analysis of spinorbit torques [1,52,65], spin Hall magnetoresistance [35], and surface spin accumulation [55] despite the nonconservation of spin angular momentum.”
- Magnetization oscillations and waves driven by pure spin currents (2016, background): “on its magnetization [46]. In recent years, SHE has been demonstrated to enable efficient magnetization switching [47, 48, 49, 50], control of domain walls [51, 52, 53], reduction of magnetic damping [46,54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64], suppression of magnetic noise [65], and excitation ”
- New perspectives for Rashba spin-orbit coupling. (2015, background): “A major difficulty is to clearly identify the physical origin of the SO torque, as spin Hall effect plays an important role in magnetic multilayers [71].”