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Modulation of Individual and Mutually Synchronized Nanocontact-Based Spin Torque Oscillators
2011 (English)In: IEEE Transactions on Magnetics, Vol. 47, no 6, 1575-1579 p.Article in journal (Refereed) Published
Abstract [en]

We study current modulation of spin torque oscillators (STOs) based on single and double nano-contacts. For single nano-contact devices, we show modulation for a carrier frequency of 19-40 GHz and modulation frequencies from 50 MHz to 1 GHz. We show that the behavior of modulation and the asymmetry in the power of the modulation sidebands can be very well modeled, and predicted, using Non-Linear Frequency and Amplitude Modulation (NFAM) calculations based on the free-running STO parameters. Modulation of synchronized double nano-contact STOs is equally well modeled by NFAM theory and demonstrates the feasibility of communication applications based on future arrays of synchronized STOs

Place, publisher, year, edition, pages
2011. Vol. 47, no 6, 1575-1579 p.
National Category
Condensed Matter Physics
URN: urn:nbn:se:uu:diva-215357DOI: 10.1109/TMAG.2010.2096463OAI: oai:DiVA.org:uu-215357DiVA: diva2:694423
Available from: 2014-02-06 Created: 2014-01-13 Last updated: 2014-02-06

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Pogoryelov, Ye.
Condensed Matter Physics

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