2020/08/13 by Jérôme Williame, Joo-Von Kim · 5 citations
Physics and Astronomy · #Acoustics #Amplitude #Amplitude modulation #Coherence (philosophical gambling strategy) #Computer science #Control theory (sociology) #Frequency modulation #Magnetic properties of thin films #Mechanical and Optical Resonators #Modulation (music) #Nonlinear system #Physics #Power (physics) #Quantum and electron transport phenomena #Quantum electrodynamics #Quantum mechanics #Sideband #Spectral density #Spin (aerodynamics) #Telecommunications #Torque #cond-mat.mes-hall #physics.app-ph
paper · pdf · doi:10.1088/1361-6463/abaf26
published in Journal of Physics D Applied Physics 53(49), 495001 (Institute of Physics) · 7 pages, 7 figures. This is the version of the article before peer review or editing, as submitted by an author to Journal of Physics D: Applied Physics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1361-6463/abaf26
openalex publication_date 2020/08/13 · arxiv created 2021/05/11 · arxiv updated 2021/05/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
Abstract A theoretical study of delayed feedback in a spin-torque nano-oscillator model is presented. The feedback acts as a modulation of the supercriticality, which results in changes in the oscillator frequency through a strong non-linearity, amplitude modulations, and a rich modulation sideband structure in the power spectrum at long delays. Modulation sidebands persist at finite temperatures but some of the complex structure is lost through the finite coherence time of the oscillations.