Switching a spin valve back and forth by current-induced domain wall motion

2003/04/14 by J. Grollier, P. Boulenc, V. Cros +7 · 7 citations
Engineering · Physics and Astronomy · #Advanced Memory and Neural Computing #Magnetic properties of thin films #Theoretical and Computational Physics #cond-mat.mtrl-sci

paper · pdf · doi:10.1063/1.1594841

4 pages, 3 figures

arxiv created 2003/04/14 · openalex publication_date 2003/07/17 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We have studied the current-induced displacement of a domain wall (DW) in the permalloy (Py) layer of a Co/Cu/Py spin valve structure at zero and very small applied field. The displacement is in opposite direction for opposite dc currents, and the current density required to move DW is only of the order of 106 A/cm2. For H=3 Oe, a back and forth DW motion between two stable positions is observed. We also discuss the effect of an applied field on the DW motion.

Citations

• Current-driven excitation of magnetic multilayers

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