Chaotic Dynamics of Spin-Valve Oscillators

2007/09/25 by Z. Yang, Zheng Yang, S. Zhang +1 · 3 citations
Engineering · Physics and Astronomy · #Advanced Memory and Neural Computing #Chaotic #Chaotic hysteresis #Computer science #Control theory (sociology) #Dynamics (music) #Magnetic properties of thin films #Noise (video) #Physics #Series (stratigraphy) #Statistical physics #Synchronization of chaos #Theoretical and Computational Physics #cond-mat.other

paper · pdf · doi:10.1103/physrevlett.99.134101

published as Phys. Rev. Lett. 99, 134101 (2007)

arxiv created 2007/09/25 · openalex publication_date 2007/09/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

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.

Citations

• Current-driven excitation of magnetic multilayers
• Jack Roach Ford, no. 1704; Autos-Ford
• Magnetization dynamics with a spin-transfer torque
• Microwave oscillations of a nanomagnet driven by a spin-polarized current
• Quantitative universality for a class of nonlinear transformations
• Synchronization of spin-transfer oscillators driven by stimulated microwave currents

Cited by

• Signal detection based on the chaotic motion of an antiferromagnetic domain wall
• Tunable transient decay times in nonlinear systems: Application to magnetic precession
• Regular and irregular dynamics of spin-polarized wavepackets in a mesoscopic quantum dot at the edge of topological insulator