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

Z. Li, Y. Charles Li, Shufeng Zhang

Research output: Contribution to journalArticle

53 Citations (Scopus)

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.

Original languageEnglish (US)
Article number054417
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume74
Issue number5
DOIs
StatePublished - 2006
Externally publishedYes

Fingerprint

Chaos theory
chaos
synchronism
Magnetization
Synchronization
magnetization
Power spectrum
power spectra
Experiments

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

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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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AB - 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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