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Nonlinear frequency and amplitude modulation of a nanocontact-based spin-torque oscillator
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2010 (English)In: Physical Review B, Vol. 81, no 14, 140408(R)- p.Article in journal (Refereed) Published
Abstract [en]

We study the current-controlled modulation of a nanocontact spin-torque oscillator. Three principally dif-ferent cases of frequency nonlinearity (d2f/dIdc2 being zero, positive, and negative) are investigated. Standardnonlinear frequency-modulation theory is able to accurately describe the frequency shifts during modulation. However, the power of the modulated sidebands only agrees with calculations based on a recent theory of combined nonlinear frequency and amplitude modulation.

Place, publisher, year, edition, pages
2010. Vol. 81, no 14, 140408(R)- p.
Keyword [en]
frequency modulation, spin-torque oscillator, spintronics
National Category
Condensed Matter Physics
Research subject
Physics with spec. in Atomic, Molecular and Condensed Matter Physics
URN: urn:nbn:se:uu:diva-215377DOI: 10.1103/PhysRevB.81.140408OAI: oai:DiVA.org:uu-215377DiVA: diva2:686944
Available from: 2014-01-13 Created: 2014-01-13 Last updated: 2014-01-13

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Publisher's full texthttp://link.aps.org/doi/10.1103/PhysRevB.81.140408

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Pogoryelov, Yevgen
Condensed Matter Physics

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