Dual control of spin-electromagnetic wave chaos in active ring oscillators based on artificial multiferroics

17th Russian Youth Conference on Physics and Astronomy

物理学;天文学

Kondrashov, A.V.^1 ; Ustinov, A.B.^1 ; Lähderanta, E.^2,3 ; Pakhomov, O.V.^2 ; Nikitin, A.A.^2,3 ; Kalinikos, B.A.^1

St. Petersburg Electrotechnical University, St. Petersburg

197376, Russia^1

ITMO University, St. Petersburg

197101, Russia^2

Lappeenranta University of Technology, Lappeenranta

53850, Finland^3

关键词: Chaotic signal;    Dielectric permittivities;    Dual control;    Multiferroics;    Nonlinear dispersive medium;    Ring oscillator;    Yttrium iron garnet films;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/661/1/012064/pdf
DOI  :  10.1088/1742-6596/661/1/012064

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

Properties of spin-electromagnetic wave chaos developed in active ring oscillators have been investigated. A multiferroic structure composed of yttrium iron garnet film and barium strontium titanate (BST) slab served as a nonlinear dispersive medium of the oscillator. Dual control of the fractal dimension of the chaotic signal attractor was realized by variation of the ring gain and dielectric permittivity of the BST slab.