Numéro |
J. Phys. IV France
Volume 07, Numéro C1, Mars 1997
7th INTERNATIONAL CONFERENCE ON FERRITES
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Page(s) | C1-383 - C1-386 | |
DOI | https://doi.org/10.1051/jp4:19971156 |
7th INTERNATIONAL CONFERENCE ON FERRITES
J. Phys. IV France 07 (1997) C1-383-C1-386
DOI: 10.1051/jp4:19971156
Institut für Festkörperphysik and SFB 185, TH Darmstadt, Hochschulstr. 6, 64289 Darmstadt, Germany
© EDP Sciences 1997
J. Phys. IV France 07 (1997) C1-383-C1-386
DOI: 10.1051/jp4:19971156
Auto-Oscillations and Chaos for Microwave Signals in Ferrite Single Crystals
H. BennerInstitut für Festkörperphysik and SFB 185, TH Darmstadt, Hochschulstr. 6, 64289 Darmstadt, Germany
Abstract
The recent progress of nonlinear dynamics has stimulated a renaissance of high-power ferromagnetic resonance experiments on ferrites, both under the aspects of basic research and application. We report on resonance experiments in yttrium iron garnet spheres probing chaotic scenarios above the first-order Suhl threshold. Different techniques have been proposed to change the observed irregular auto-oscillations of magnetization into regular motion. The delayed feedback control method of Pyragas is studied both in theory and experimental application.
© EDP Sciences 1997