Influence of magnetic viscosity on domain wall dynamics under spin-polarized currents

Details Influence of magnetic viscosity on domain wall dynamics under spin-polarized currents Influence of magnetic viscosity on domain wall dynamics under spin-polarized currents

2009-07-16

arxiv.org/abs/0907.2867v1

Physics

Condensed Matter

Materials Science

8 pages, 4 figures

Scientific paper

We present a theoretical study of the influence of magnetic viscosity on current-driven domain wall dynamics. In particular we examine how domain wall depinning transitions, driven by thermal activation, are influenced by the adiabatic and nonadiabatic spin-torques. We find the Arrhenius law that describes the transition rate for activation over a single energy barrier remains applicable under currents but with a current-dependent barrier height. We show that the effective energy barrier is dominated by a linear current dependence under usual experimental conditions, with a variation that depends only on the nonadiabatic spin torque coefficient beta.

Affiliated with

Also associated with

No associations

Rating

Influence of magnetic viscosity on domain wall dynamics under spin-polarized currents does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Influence of magnetic viscosity on domain wall dynamics under spin-polarized currents, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Influence of magnetic viscosity on domain wall dynamics under spin-polarized currents will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-622417