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Impact of Magnetoresistance and Anisotropy on Synchronized Spin Torque Oscillators
KTH, School of Information and Communication Technology (ICT), Microelectronics and Applied Physics, MAP.
KTH, School of Information and Communication Technology (ICT), Microelectronics and Applied Physics, MAP.
KTH, School of Information and Communication Technology (ICT), Microelectronics and Applied Physics, MAP.
2007 (English)In: 2007 7th IEEE Conference On Nanotechnology, Vol 1-3, 2007, 233-236 p.Conference paper, Published paper (Refereed)
Abstract [en]

Synchronization of pairs of serially connected Spin Torque Oscillators (STO) was studied using Landau-Lifshitz-Gilbert-Slonczewski magnetodynamic simulations. The impact of realistic process variations on STO synchronization was estimated by allowing for different in-plane anisotropy fields (H(k)) in the two STOs. We find that the synchronized state is extremely sensitive to STO process variations and can only sustain up to 4% H(k) variation. However, the addition of a small time delay dramatically improves the robustness of the synchronization and allows as much as 145% H(k) variation in the entire out-of-plane precession regime.

Place, publisher, year, edition, pages
2007. 233-236 p.
Keyword [en]
synchronization, coupled spin torque oscillator, time delay
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-41106DOI: 10.1109/NANO.2007.4601178ISI: 000261434900051Scopus ID: 2-s2.0-52949091973ISBN: 978-1-4244-0607-4 (print)OAI: oai:DiVA.org:kth-41106DiVA: diva2:443789
Conference
7th IEEE Conference on Nanotechnology Location: Hong Kong, China, Date: AUG 02-05, 2007
Available from: 2011-09-27 Created: 2011-09-23 Last updated: 2011-09-27Bibliographically approved

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CiteExportLink to record
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