Spin-wave propagation in a microstructured magnonic crystal

A. V. Chumak; P. Pirro; A. A. Serga; M. P. Kostylev; R. L. Stamps; H. Schultheiss; K. Vogt; S. J. Hermsdoerfer; B. Laegel; P. A. Beck; B. Hillebrands

doi:10.1063/1.3279138

arXiv · 0911.1920

Spin-wave propagation in a microstructured magnonic crystal

A. V. Chumak·P. Pirro·A. A. Serga·M. P. Kostylev·R. L. Stamps·H. Schultheiss·K. Vogt·S. J. Hermsdoerfer·B. Laegel·P. A. Beck·B. Hillebrands

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Abstract

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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A. V. Chumak, P. Pirro, A. A. Serga, M. P. Kostylev, R. L. Stamps, H. Schultheiss, K. Vogt, S. J. Hermsdoerfer, B. Laegel, P. A. Beck, B. Hillebrands. 2009-11-10. Spin-wave propagation in a microstructured magnonic crystal. https://doi.org/10.1063/1.3279138

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