title: Temperature dependence of spin-transfer-induced switching of nanomagnets.
abstract: We measure the temperature, magnetic-field, and current dependence for the switching of nanomagnets by a spin-polarized current. Depending on current bias, switching can occur between either two static magnetic states or a static state and a current-driven precessional mode. In both cases, the switching is thermally activated and governed by the sample temperature, not a higher effective magnetic temperature. The activation barriers for switching between static states depend linearly on current, with a weaker dependence for dynamic to static switching.
authors.affiliation: Cornell University, Ithaca, New York 14853, USA.
authors.forename: I N
authors.initials: IN
authors.lastname: Krivorotov
authors.forename: N C
authors.initials: NC
authors.lastname: Emley
authors.forename: A G F
authors.initials: AG
authors.lastname: Garcia
authors.forename: J C
authors.initials: JC
authors.lastname: Sankey
authors.forename: S I
authors.initials: SI
authors.lastname: Kiselev
authors.forename: D C
authors.initials: DC
authors.lastname: Ralph
authors.forename: R A
authors.initials: RA
authors.lastname: Buhrman