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

R. Jansen, R. Vlutters, P.S. Anil Kumar, O.M.J. van 't Erve, S.D. Kim, J.C. Lodder

    Research output: Contribution to journalArticleAcademicpeer-review


    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.
    Original languageUndefined
    Pages (from-to)658-660
    Number of pages3
    JournalJournal of magnetism and magnetic materials
    Issue numberPart 1
    Publication statusPublished - 2001


    • SMI-NE: From 2006 in EWI-NE
    • METIS-203543
    • IR-62967
    • Semiconductors
    • Spin-dependent scattering
    • Spin valve
    • Spin waves
    • EWI-5466

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