Dynamic magnetization states of a spin valve in the presence of dc and ac currents: Synchronization, modification, and chaos

Z. Li, Y. Charles Li, and S. Zhang
Phys. Rev. B 74, 054417 – Published 16 August 2006

Abstract

We present analytical and numerical calculations of dynamic magnetization states of a spin valve in the presence of dc and ac currents. Three distinct dynamic phases, synchronization, modification, and chaos, are identified within the experimental parameter space. A particularly interesting result is the appearance of the synchronization-chaos boundaries. In the region of synchronization, our results agree with experiments. In the modification and chaos regions, we predict experimentally observable power spectra.

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  • Received 19 June 2006

DOI:https://doi.org/10.1103/PhysRevB.74.054417

©2006 American Physical Society

Authors & Affiliations

Z. Li1, Y. Charles Li2, and S. Zhang1

  • 1Department of Physics and Astronomy, University of Missouri-Columbia, Columbia, Missouri 65211, USA
  • 2Department of Mathematics, University of Missouri-Columbia, Columbia, Missouri 65211, USA

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Issue

Vol. 74, Iss. 5 — 1 August 2006

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