Magnetic Vortex Dynamics Using the Optical Cotton-Mouton Effect
- 9 July 1984
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 53 (2), 190-193
- https://doi.org/10.1103/physrevlett.53.190
Abstract
The first use of linear magnetic birefringence (optical Cotton-Mouton effect) to observe a magnetic resonance is reported. This allows us to make the first direct observation of resonant motion of a ferromagnetic vortex. This vortex is present in an easy-plane garnet film at the intersection of two 90° Néel walls. Agreement between the resonant frequencies and our theory confirms a previously proposed equation of vortex motion.Keywords
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