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Title: Nanocontact size dependence of the properties of vortex-based spin torque oscillators
Authors: Otxoa, R. M ×
Manfrini, Mauricio
Devolder, T
Kim, J. -V
van Roy, W
Lagae, Liesbet
Chappert, C #
Issue Date: Jul-2011
Publisher: Akademie-Verlag
Series Title: Physica Status Solidi B, Basic Research vol:248 issue:7 pages:1615-1618
Abstract: We study the frequency, linewidth, and power of spin torque driven vortex oscillators, based on a nanocontacted spin-valve (SV). The oscillation frequency strongly decreases with the contact size, and increases with the current. The power delivered by the oscillator is not quadratic with the current, in contrast with the behavior expected from the rigid vortex model (RVM). The linewidth is almost independent of the current at low current and does not strongly depend on the nanocontact size. We compare our findings with the outcomes of the RVM. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
ISSN: 0370-1972
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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