CONTROLLING UNSTABLE PERIODIC-ORBITS IN A SPIN-WAVE EXPERIMENT USING THE OGY SCHEME

Authors
HENN R RODELSPERGER F BENNER H
Citation
R. Henn et al., CONTROLLING UNSTABLE PERIODIC-ORBITS IN A SPIN-WAVE EXPERIMENT USING THE OGY SCHEME, Journal of magnetism and magnetic materials, 140, 1995, pp. 1935-1936
Citations number
5
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
140
Year of publication
1995
Part
3
Pages
1935 - 1936
Database
ISI
SICI code
0304-8853(1995)140:<1935:CUPIAS>2.0.ZU;2-O
Abstract
Dynamic instabilities of magnetization in YIG spheres were studied by high-power ferromagnetic resonance at the first-order Suhl instability . By means of an analog feedback technique implementing the controllin g scheme of Ott, Grebogi and Yorke, we suppressed the chaotic FMR sign al and stabilized a periodic oscillation by applying a very small time -dependent feedback signal of less than 10(-3) of the applied microwav e power.