Temperature dependence of magnetocurrent of hot electrons in a spin-valve transistor

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Jansen, R. and Vlutters, R. and Anil Kumar, P.S. and Erve van 't, O.M.J. and Kim, S.D. and Lodder, J.C. (2001) Temperature dependence of magnetocurrent of hot electrons in a spin-valve transistor. Journal of Magnetism and Magnetic Materials, 226-23 (Part 1). pp. 658-660. ISSN 0304-8853

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Abstract:Spin-dependent transport of hot electrons across a spin valve has been studied as function of temperature using a spin-valve transistor with a soft Ni80Fe20/Au/Co spin-valve base. Spin-dependent scattering makes the collector current highly sensitive to small magnetic fields that change the magnetic state of the base. The magnetocurrent approaches 400% at 100K but decays to about 240% at room temperature. The reduction is attributed to mixing of the two spin channels due to spin-flip scattering of hot electrons by thermal spin waves.
Item Type:Article
Copyright:© 2001 Elsevier
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/62967
Official URL:http://dx.doi.org/10.1016/S0304-8853(00)00772-1
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