Effect of Antiferromagnetic Interlayer Coupling on Current-Assisted Magnetization Switching

Preprint

28 March 2003

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0303614

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.

Keywords

All Related Versions

Version 1, 2003-03-28, ArXiv
Version 1, 2003-04-12, ArXiv (Unconfirmed version)
Published version: Applied Physics Letters, 83 (1), 114.

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