Chaotic dynamics of spin-valve oscillators

Z. Yang, S. Zhang, Y. Charles Li

Research output: Contribution to journalArticle

43 Scopus citations

Abstract

Recent experimental and theoretical studies on the magnetization dynamics driven by an electric current have uncovered a number of unprecedented rich dynamic phenomena. We predict an intrinsic chaotic dynamics that has not been previously anticipated. We explicitly show that the transition to chaotic dynamics occurs through a series of period doubling bifurcations. In chaotic regime, two dramatically different power spectra, one with a well-defined peak and the other with a broadly distributed noise, are identified and explained.

Original languageEnglish (US)
Article number134101
JournalPhysical review letters
Volume99
Issue number13
DOIs
StatePublished - Sep 25 2007
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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