Spin-polarized currents in exchange spring systems
Spin-polarized currents in exchange spring systems
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.
magnetisation, nanostructured materials, spin polarised transport
07A504-1-07A504-3
Franchin, Matteo
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Bordignon, Giuliano
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Fischbacher, Thomas
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Meier, Guido
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Zimmermann, Jürgen
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de Groot, Peter
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Fangohr, Hans
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1 April 2008
Franchin, Matteo
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Bordignon, Giuliano
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Fischbacher, Thomas
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Meier, Guido
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Zimmermann, Jürgen
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de Groot, Peter
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Fangohr, Hans
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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), .
(doi:10.1063/1.2837665).
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.
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Published date: 1 April 2008
Additional Information:
Spin Torque
Keywords:
magnetisation, nanostructured materials, spin polarised transport
Identifiers
Local EPrints ID: 143945
URI: http://eprints.soton.ac.uk/id/eprint/143945
ISSN: 0021-8979
PURE UUID: 08113250-1b25-4ebd-bb71-38cc574f7d1d
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Date deposited: 13 Apr 2010 15:46
Last modified: 10 Jan 2022 02:43
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Contributors
Author:
Matteo Franchin
Author:
Giuliano Bordignon
Author:
Thomas Fischbacher
Author:
Guido Meier
Author:
Jürgen Zimmermann
Author:
Peter de Groot
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