Effect of antiferromagnetic interlayer coupling on current-assisted magnetization switching

2003/03/28 by S. Urazhdin, H. Kurt, W. P. Pratt +2 · 2 citations
Engineering · Materials Science · Physics and Astronomy · #Magnetic properties of thin films #Metallic Glasses and Amorphous Alloys #Multiferroics and related materials #cond-mat

paper · pdf · doi:10.1063/1.1592311

3 pages, 3 figures

arxiv created 2003/03/28 · openalex publication_date 2003/07/03 · arxiv updated 2009/11/30 · openalex created_date 2017/03/16 · openalex updated_date 2026/07/28

Abstract

We compare magnetization switching in Co/Cu/Co nanopillars with uncoupled and dipole-field coupled Co layers. In uncoupled nanopillars, current-driven switching is hysteretic at low magnetic field H and changes to reversible, characterized by telegraph noise, at high H. We show that dipolar coupling both affects the switching current and causes the switching to become reversible at small H. The coupling thus changes the switching to reversible, hysteretic, and then reversible again as H increases. We describe our results in terms of current-assisted thermal activation.

Citations

• Field dependence of magnetization reversal by spin transfer

Cited by

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