Spectrum and lineshape of bubble-lattice resonance
- 1 September 1980
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Magnetics
- Vol. 16 (5) , 657-659
- https://doi.org/10.1109/tmag.1980.1060753
Abstract
Spectral analysis of photometrically detected bubble-lattice oscillations reveal resonance frequencies of 45 and 66 MHz in a 6.2&m film of (Gd,Y)3(Fe,Ga)5O12. Similar results are obtained for stripe lattices. Existing theory explains the dependence of the lower-frequency resonance on bias field and lattice parameter. To explain the higher resonance, a theory of flexural wall vibration for plane walls associates the resonances with wave functions having zero and two nodal lines lying parallel to the film, respectively. We conclude that the amplitude of the main mode is greater at the surfaces than within the interior of the film. Characteristic fold-over and clipping of resonance line shapes are noted and discussed.Keywords
This publication has 7 references indexed in Scilit:
- Observation of the radial oscillation of a bubble latticeSolid State Communications, 1979
- Theory of saturation velocity and ballistic overshoot for interpreting domain wall oscillation and dynamic bubble collapse experiments in high mobility bubble filmsJournal of Magnetism and Magnetic Materials, 1976
- Bubble Lattice Motions Due to Modulated Bias FieldsIBM Journal of Research and Development, 1976
- Statics and dynamics of domain walls in bubble materialsJournal of Applied Physics, 1975
- Dynamic properties of high-mobility garnet films in the presence of in-plane magnetic fieldsJournal of Applied Physics, 1974
- On the radial mode in bubble latticesIEEE Transactions on Magnetics, 1973
- Resonant Motion of Domain Walls in Yttrium Gadolinium Iron GarnetsJournal of Applied Physics, 1972