Spin-torque switching in Py/Cu/Py and Py/Cu/CoPt spin-valve nanopillars

The magnetization reversal in Py–Cu–Py and Py–Cu–CoPt trilayers of elliptical cross-section having roughly a 2:1 aspect ratio has been investigated by means of a micromagnetic simulation framework. The analysis focuses on the dependence on both the external field orientation and the perpendicular ma...

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Published in:Journal of magnetism and magnetic materials 2007-09, Vol.316 (2), p.492-495
Main Authors: Consolo, G., Finocchio, G., Torres, L., Carpentieri, M., Lopez-Diaz, L., Azzerboni, B.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electronic transport in condensed matter
Exact sciences and technology
Giant magnetoresistance
Magnetic properties and materials
Magnetotransport phenomena, materials for magnetotransport
Micromagnetic simulation
Perpendicular anisotropy
Physics
Spin polarized transport
Spin-polarized current
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creator Consolo, G.
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description The magnetization reversal in Py–Cu–Py and Py–Cu–CoPt trilayers of elliptical cross-section having roughly a 2:1 aspect ratio has been investigated by means of a micromagnetic simulation framework. The analysis focuses on the dependence on both the external field orientation and the perpendicular magnetocrystalline anisotropy. These parameters affect the spatial distribution of the magnetization during the reversal processes yielding to different nucleation mechanisms. Furthermore, our results suggest a strategy to decrease the switching time considering a material exhibiting perpendicular anisotropy in the free layer (FL).
doi_str_mv 10.1016/j.jmmm.2007.03.164
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subjects Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electronic transport in condensed matter
Exact sciences and technology
Giant magnetoresistance
Magnetic properties and materials
Magnetotransport phenomena, materials for magnetotransport
Micromagnetic simulation
Perpendicular anisotropy
Physics
Spin polarized transport
Spin-polarized current
title Spin-torque switching in Py/Cu/Py and Py/Cu/CoPt spin-valve nanopillars
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