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 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.
Koch
R H
RH
IBM T. J. Watson Research Center, P.O. Box 218, Yorktown Heights, New York 10598, USA.
Katine
J A
JA
Sun
J Z
JZ