Spin-polarized currents in exchange spring systems


Franchin, Matteo, Bordignon, Giuliano, Fischbacher, Thomas, Meier, Guido, Zimmermann, Jürgen, de Groot, Peter and Fangohr, Hans (2008) Spin-polarized currents in exchange spring systems. [in special issue: Proceedings of the 52nd Annual Conference on Magnetism and Magnetic Materials] Journal of Applied Physics, 103, (7), 07A504-1-07A504-3. (doi:10.1063/1.2837665).

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Description/Abstract

We present a computational study of the magnetization dynamics of a trilayer exchange spring system in the form of a cylindrical nanopillar in the presence of an electric current. A three-dimensional micromagnetic model is used, where the interaction between the current and the local magnetization is taken into account following a recent model by Zhang and Li [Phys. Rev. Lett. 93, 127204 (2004)] We obtain a stationary rotation of the magnetization of the system around its axis, accompanied by a compression of the artificial domain wall in the direction of the electron flow.

Item Type: Article
Additional Information: Spin Torque
ISSNs: 0021-8979 (print)
1089-7550 (electronic)
Keywords: magnetisation, nanostructured materials, spin polarised transport
Subjects: Q Science > QC Physics
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences
University Structure - Pre August 2011 > School of Physics and Astronomy
Item ID: 143945
Date Deposited: 13 Apr 2010 15:46
Last Modified: 08 Jun 2012 12:59
Contributors: Franchin, Matteo (Author)
Bordignon, Giuliano (Author)
Fischbacher, Thomas (Author)
Meier, Guido (Author)
Zimmermann, Jürgen (Author)
de Groot, Peter (Author)
Fangohr, Hans (Author)
Date: 1 April 2008
Additional Information: Spin Torque
Status: Published
URI: http://eprints.soton.ac.uk/id/eprint/143945

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