Spin-wave propagation in a microstructured magnonic crystal

Details Spin-wave propagation in a microstructured magnonic crystal Spin-wave propagation in a microstructured magnonic crystal

2009-11-10

arxiv.org/abs/0911.1920v1

Appl. Phys. Lett. 95, 262508 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 figures

Scientific paper

10.1063/1.3279138

Transmission of microwave spin waves through a microstructured magnonic crystal in the form of a permalloy waveguide of a periodically varying width was studied experimentally and theoretically. The spin wave characteristics were measured by spatially-resolved Brillouin light scattering microscopy. A rejection frequency band was clearly observed. The band gap frequency was controlled by the applied magnetic field. The measured spin-wave intensity as a function of frequency and propagation distance is in good agreement with a model calculation.

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