Non-adiabatic spin torque investigated using thermally activated magnetic domain wall dynamics

Details Non-adiabatic spin torque investigated using thermally activated magnetic domain wall dynamics Non-adiabatic spin torque investigated using thermally activated magnetic domain wall dynamics

2010-05-07

arxiv.org/abs/1005.1168v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

Using transmission electron microscopy, we investigate the thermally activated motion of domain walls (DWs) between two positions in permalloy (Ni80Fe20) nanowires at room temperature. We show that this purely thermal motion is well described by an Arrhenius law, allowing for a description of the DW as a quasi-particle in a 1D potential landscape. By injecting small currents, the potential is modified, allowing for the determination of the non-adiabatic spin torque: the non-adiabatic coefficient is 0.010 +/- 0.004 for a transverse DW and 0.073 +/- 0.026 for a vortex DW. The larger value is attributed to the higher magnetization gradients present.

Affiliated with

Also associated with

No associations

Rating

Non-adiabatic spin torque investigated using thermally activated magnetic domain wall dynamics 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 Non-adiabatic spin torque investigated using thermally activated magnetic domain wall dynamics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-adiabatic spin torque investigated using thermally activated magnetic domain wall dynamics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-222504