Time-resolved reversal of spin-transfer switching in a nanomagnet

Time-resolved measurements of spin-transfer-induced (STI) magnetization reversal were made in current-perpendicular spin-valve nanomagnetic junctions subject to a pulsed current bias. These results can be understood within the framework of a Landau-Lifshitz-Gilbert equation that includes STI correct...

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Bibliographic Details
Published inPhysical review letters Vol. 92; no. 8; p. 088302
Main Authors Koch, R H, Katine, J A, Sun, J Z
Format Journal Article
LanguageEnglish
Published United States 27.02.2004
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ISSN0031-9007
DOI10.1103/PhysRevLett.92.088302

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Summary:Time-resolved measurements of spin-transfer-induced (STI) magnetization reversal were made in current-perpendicular spin-valve nanomagnetic junctions subject to a pulsed current bias. These results can be understood within the framework of a Landau-Lifshitz-Gilbert equation that includes STI corrections and a Langevin random field for finite temperature. Comparison of these measurements with model calculations demonstrates that spin-transfer induced excitation is responsible for the observed magnetic reversal in these samples.
ISSN:0031-9007
DOI:10.1103/PhysRevLett.92.088302