Anisotropic Spin-Orbit Scattering of Hot-Electron Spins Injected into Ferromagnetic Thin-Films

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Jansen, R. and Kim, S.D. and Vlutters, R. and Erve, O.M.J. van 't and Lodder, J.C. (2001) Anisotropic Spin-Orbit Scattering of Hot-Electron Spins Injected into Ferromagnetic Thin-Films. Physical Review Letters, 87 (16). p. 166601. ISSN 0031-9007

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Abstract:Anisotropic spin-orbit scattering of hot-electron spins in ferromagnets is examined by injecting a hot-electron current into the thin ferromagnetic base of a transistor and measuring the current attenuation as a function of the magnetization orientation. The transmission anisotropy is described by a simple model, from which we extract an effective spin-orbit scattering length of 420 nm for hot-electron spins in Ni80Fe20, independent of temperature. The corresponding scattering time ( <0.3 ps) is surprisingly short, suggesting efficient spin-lattice relaxation of hot electrons. The results also unambiguously demonstrate the attenuation of a hot-electron current by an elastic scattering process.
Item Type:Article
Copyright:© 2001 American Physical Society
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Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/61280
Official URL:http://dx.doi.org/10.1103/PhysRevLett.87.166601
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