Thermal Spin-Wave Scattering in Hot-Electron Magnetotransport Across a Spin Valve

Jansen, R. and Anil Kumar, P.S. and Erve van 't, O.M.J. and Vlutters, R. and Haan de, P. and Lodder, J.C. (2000) Thermal Spin-Wave Scattering in Hot-Electron Magnetotransport Across a Spin Valve. Physical Review Letters, 85 (15). pp. 3277-3288. ISSN 0031-9007

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Abstract:	The role of thermal scattering in spin-dependent transport of hot electrons at 0.9 eV is studied using a spin-valve transistor with a soft Ni80Fe20/Au/Co base. Spin-dependent scattering makes the collected electron current depend sensitively on the magnetic state of the base. The magnetocurrent reaches 560% at 100 K, decays with increasing temperature, and a huge effect of 350% still remains at room temperature. The results demonstrate that thermal spin waves produce quasielastic spin-flip scattering of hot electrons, resulting in mixing of the two spin channels.
Item Type:	Article
Copyright:	© 2000 The American Physical Society
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Transducers Science and Technology (TST)
Link to this item:	http://purl.utwente.nl/publications/61229
Official URL:	http://dx.doi.org/10.1103/PhysRevLett.85.3277
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Metis ID: 112300