Domain wall propagation in magnetic nanowires by spin polarized current injection

Abstract : We demonstrate movement of a head-to-head domain wall through a magnetic nanowire simply by passing an electrical current through the domain wall and without any external magnetic field applied. The effect depends on the sense and magnitude of the electrical current and allows direct propagation of domain walls through complex nanowire shapes, contrary to the case of magnetic field induced propagation. The efficiency of this mechanism has been evaluated and the effective force acting on the wall has been found equal to 0.88x10-9 N.A-1.
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Submitted on : Sunday, March 5, 2006 - 11:46:39 PM
Last modification on : Thursday, January 11, 2018 - 6:14:24 AM

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Nicolas Vernier, Dan A. Allwood, Del Atkinson, Michael D. Cooke, Russell P. Cowburn. Domain wall propagation in magnetic nanowires by spin polarized current injection. EPL - Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2004, 65, pp.526-532. ⟨hal-00020090⟩

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