title: Rapid domain wall motion in permalloy nanowires excited by a spin-polarized current applied perpendicular to the nanowire.
abstract: We study domain wall dynamics in Permalloy nanowires excited by alternating spin-polarized current applied perpendicular to the nanowire. Spin torque ferromagnetic resonance measurements reveal that domain wall oscillations at a pinning site in the nanowire can be excited with velocities as high as 800 m/s at current densities below 10{7} A/cm{2}.
authors.affiliation: Department of Physics and Astronomy, University of California, Irvine, California 92697, USA.
authors.forename: C T
authors.initials: CT
authors.lastname: Boone
authors.forename: J A
authors.initials: JA
authors.lastname: Katine
authors.forename: M
authors.initials: M
authors.lastname: Carey
authors.forename: J R
authors.initials: JR
authors.lastname: Childress
authors.forename: X
authors.initials: X
authors.lastname: Cheng
authors.forename: I N
authors.initials: IN
authors.lastname: Krivorotov