Effects of Disorder and Internal Dynamics on Vortex Wall Propagation

Details Effects of Disorder and Internal Dynamics on Vortex Wall Propagation Effects of Disorder and Internal Dynamics on Vortex Wall Propagation

2010-03-04

arxiv.org/abs/1003.1128v2

Phys. Rev. Lett. 104, 217201 (2010)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 5 figures

Scientific paper

10.1103/PhysRevLett.104.217201

Experimental measurements of domain wall propagation are typically interpreted by comparison to reduced models that ignore both the effects of disorder and the internal dynamics of the domain wall structure. Using micromagnetic simulations, we study vortex wall propagation in magnetic nanowires induced by fields or currents in the presence of disorder. We show that the disorder leads to increases and decreases in the domain wall velocity depending on the conditions. These results can be understood in terms of an effective damping that increases as disorder increases. As a domain wall moves through disorder, internal degrees of freedom get excited, increasing the energy dissipation rate.

Affiliated with

Also associated with

No associations

Rating

Effects of Disorder and Internal Dynamics on Vortex Wall Propagation 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 Effects of Disorder and Internal Dynamics on Vortex Wall Propagation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effects of Disorder and Internal Dynamics on Vortex Wall Propagation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-686669