Physics – Condensed Matter – Materials Science
Scientific paper
2003-04-12
Physics
Condensed Matter
Materials Science
2 pages, 2 figures
Scientific paper
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.
Bass Jack
Pratt William P. Jr.
Urazhdin Sergei
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