Optical detection of spin transport in non-magnetic metals
arXiv:1011.4656 · doi:10.1103/PhysRevLett.106.226601
Abstract
We determine the dynamic magnetization induced in non-magnetic metal wedges composed of silver, copper and platinum by means of Brillouin light scattering (BLS) microscopy. The magnetization is transferred from a ferromagnetic Ni80Fe20 layer to the metal wedge via the spin pumping effect. The spin pumping efficiency can be controlled by adding an insulating but transparent interlayer between the magnetic and non-magnetic layer. By comparing the experimental results to a dynamical macroscopic spin-transport model we determine the transverse relaxation time of the pumped spin current which is much smaller than the longitudinal relaxation time.
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- Room Temperature Reversible Spin Hall Effect
- Anatomy of Spin-Transfer Torque
- Spin-Diffusion Lengths in Metals and Alloys, and Spin-Flipping at Metal/Metal Interfaces: an Experimentalist's Critical Review
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Cited by in corpus (5)
- Magneto-Optical Detection of the Spin Hall Effect in Pt and W Thin Films
- Experimental observation of a large ac-spin Hall effect
- Experimental Verification of Comparability between Spin-Orbit and Spin-Diffusion Lengths
- Direct detection of pure spin-current by x-ray pump-probe measurements
- Phase-resolved imaging of edge-mode spin waves using scanning transmission x-ray microscopy