Mesoscopic Current-In-Plane Giant Magneto-Resistance

Details Mesoscopic Current-In-Plane Giant Magneto-Resistance Mesoscopic Current-In-Plane Giant Magneto-Resistance

2011-09-16

arxiv.org/abs/1109.3602v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

We develop a three dimensional semiclassical theory which generalizes the Valet-Fert model in order to account for non-collinear systems with magnetic texture, including e.g. domain walls or magnetic vortices. The theory allows for spin transverse to the magnetization to penetrate inside the ferromagnet over a finite length and properly accounts for the Sharvin resistances. For ferromagnetic-normal-ferromagnetic multilayers where the current is injected in the plane of the layers (CIP), we predict the existence of a non zero mesoscopic CIP Giant Magneto-Resistance (GMR) at the diffusive level. This mesoscopic CIP-GMR, which adds to the usual ballistic contributions, has a non monotonic spatial variation and is reminiscent of conductance quantization in the layers. Furthermore, we study the spin transfer torque in spin valve nanopillars. We find that when the magnetization direction is non uniform inside the free layer, the spin torque changes very significantly and simple one-dimensional calculations cease to be reliable.

Affiliated with

Also associated with

No associations

Rating

Mesoscopic Current-In-Plane Giant Magneto-Resistance 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 Mesoscopic Current-In-Plane Giant Magneto-Resistance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mesoscopic Current-In-Plane Giant Magneto-Resistance will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-534910