A New Branch of the Spectrum of Single Domain Wall Excitations in Magnetic Garnet Films
| Autor: | H. Dötsch, V. T. Synogach |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Magnetic domain
Condensed matter physics Chemistry Plane (geometry) General Physics and Astronomy Resonance 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Magnetic field Magnetization Laser linewidth [PHYS.HIST]Physics [physics]/Physics archives 0103 physical sciences Single domain 010306 general physics 0210 nano-technology Excitation |
| Zdroj: | Journal de Physique IV Proceedings Journal de Physique IV Proceedings, EDP Sciences, 1997, 07 (C1), pp.C1-451-C1-452. ⟨10.1051/jp4:19971183⟩ |
| ISSN: | 1155-4339 1764-7177 |
| DOI: | 10.1051/jp4:19971183 |
| Popis: | 180° and 90° domain walls in Bi-substituted [110] and [100] oriented garnet films with in-plane magnetization are studied by means of planar excitation-detection structures at microwave frequencies. New multiple resonance modes of single domain walls with very low linewidth (4.2 MHz) are observed at frequencies near 1 GHz. The resonances are excited by rf magnetic fields which are parallel or perpendicular to the wall plane. Resonance frequencies show a nonlinear dispersion dependence on the mode number. They decrease with an increasing static in-plane magnetic field normal to the wall plane. With decreasing film thickness the resonance frequencies increase. In addition the well known low-frequency resonances related to the wall translations or its flexural vibrations (Goldstone modes) are also observed in these samples. |
| Databáze: | OpenAIRE |
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