Impact of Magnetoresistance and Anisotropy on Synchronized Spin Torque Oscillators
2007 (English)In: 2007 7th IEEE Conference On Nanotechnology, Vol 1-3, 2007, 233-236 p.Conference paper (Refereed)
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.
synchronization, coupled spin torque oscillator, time delay
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-41106DOI: 10.1109/NANO.2007.4601178ISI: 000261434900051ScopusID: 2-s2.0-52949091973ISBN: 978-1-4244-0607-4OAI: oai:DiVA.org:kth-41106DiVA: diva2:443789
7th IEEE Conference on Nanotechnology Location: Hong Kong, China, Date: AUG 02-05, 2007