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

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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.
2 pages, 2 figures

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Materials Science

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http://salesiana.dossiersoluciones.com/handle/123456789/21214

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0304299
 http://arxiv.org/abs/cond-mat/0304299

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arXiv