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Proceedings Paper

STVOs in multilayered metallic NWs electrodeposited inside nanoporous alumina templates: experimental measurements and micromagnetic study
Author(s): Flavio Abreu Araujo; Vincent Cros; Konstantin A. Zvezdin; Luc Piraux
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Paper Abstract

We report on microwave oscillations induced by spin-transfer-torque in metallic spin-valves obtained by electrodeposition of Co-Cu-Co trilayer structures in nanoporous alumina templates. Using micromagnetic calculations performed on similar spin-valve structures it was possible to identify the magnetization dynamics associated with the experimentally determined microwave emission. Furthermore it appears that in our particular geometry the microwave emission is generated by the vortex gyrotropic motion which occurs in, at least, one of the two magnetic layers of our spin-valve structures. Microwave emission was obtained in the absence of any external magnetic field with the appropriate magnetization configuration.

Paper Details

Date Published: 9 October 2012
PDF: 11 pages
Proc. SPIE 8461, Spintronics V, 84610T (9 October 2012); doi: 10.1117/12.930766
Show Author Affiliations
Flavio Abreu Araujo, Univ. Catholique de Louvain (Belgium)
Vincent Cros, Unité Mixte de Physique CNRS/Thales (France)
Konstantin A. Zvezdin, A. M. Prokhorov General Physics Institute (Russian Federation)
Istituto P.M. s.r.l. (Italy)
Luc Piraux, Univ. Catholique de Louvain (Belgium)

Published in SPIE Proceedings Vol. 8461:
Spintronics V
Henri-Jean Drouhin; Jean-Eric Wegrowe; Manijeh Razeghi, Editor(s)

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