Effect of Interlayer Coupling on Current-Assisted Magnetization Switching in Nanopillars

Preprint

12 April 2003

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0304299

Abstract

We show that dipole-field induced antiferromagnetic coupling, or RKKY ferromagnetic coupling, between Co layers can strongly affect the low magnetic field switching behavior of Co/Cu/Co nanopillars. Whereas current-assisted switching at low fields in uncoupled nanopillars is always hysteretic, strong coupling of either kind can change the switching to non-hysteretic (reversible). These differences can be understood with a simple picture of current-assisted thermal activation over a barrier.

Keywords

MAGNETIZATION SWITCHING
ASSISTED MAGNETIZATION
INTERLAYER COUPLING
ANTIFERROMAGNETIC
CURRENT ASSISTED
FERROMAGNETIC
NANOPILLARS
HYSTERETIC
BEHAVIOR

All Related Versions

Version 1, 2003-04-12, ArXiv

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