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

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)
Research Group:	Transducers Science and Technology (TST)
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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