Domain Wall Propagation Model

In the particular regime of layer thickness h of the order of the exchange length anomalous velocity peaks appear in the.

Domain wall propagation model. De riz 2 b. This paper reports on a compact model for domain wall mtj based circuit. Magnetic domain wall dw motion along a nanowire underpins many proposals of spintronic devices1 2. By combining this shifting scheme with magnetic tunnel junction mtj for reading and writi.

Color online a a schematic diagram of domain wall propagation in disordered medium. Current driven domain wall motion is very promising for low power high density and high speed circuits. This article is copyrighted as. We have investigated numerically the field driven propagation of perpendicularly magnetized ferromagnetic layers.

It was then compared to the historical one dimensional domain wall dw propagation model widely used in spintronics studies of magnetic nanostructures. A domain wall is a gradual reorientation of individual moments across a finite distance. Gusakova 2 1institute of materials science of madrid csic 28049 madrid spain 2univ. High dw propagation velocity is obviously important because it determines the device speed.

Elastic forces come from the curvature of domain wall and defects work as strong pinning sites. B theoretical prediction on the domain wall velocity v vs. A compact model of domain wall propagation for logic. In current driven dw propagation many efforts have been devoted to high dw velocity and low current density in order to optimize de vice performance.

Fruchart 2 and d. In the particular regime of layer thickness. 4 downloads 9 views 1mb size report. It was then compared to the historical one dimensional domain wall dw propagation model widely used in spintronics studies of magnetic nanostructures.

6 indicating the normal v and axial v x velocities of the wall. By combining this shifting scheme with magnetic tunnel junction mtj for reading and writing processes it opens new routes for nonvolatile logic and memory applications that are crucial for the future of spintronics. The domain configuration during the propagation of the wall is schematically depicted in fig. In this figure r 0 denotes the wire radius and r b the radius of the internal core with magnetization along the axial direction.

In magnetism a domain wall is an interface separating magnetic domains it is a transition between different magnetic moments and usually undergoes an angular displacement of 90 or 180. The domain wall thickness depends on the anisotropy of the material but on average spans across around 100 150 atoms. Grenoble alpes cnrs cea grenoble inp inac spintec f 38000 grenoble france. 1 modeling magnetic field induced domain wall propagation in modulated diameter cylindrical nanowires j.