Scattering of surface and volume spin waves in a magnonic crystal

Abstract

The operational characteristics of a magnonic crystal, which was fabricated as an array of shallow grooves etched on a surface of a magnetic film, were compared for magnetostatic surface spin waves and backward volume magnetostatic spin waves. In both cases the formation of rejection frequency bands was studied as a function of the grooves depth. It has been found that the rejection of the volume wave is considerably larger than of the surface one. The influences of the nonreciprocity of the surface spin waves as well as of the scattering of the lowest volume spin-wave mode into higher thickness volume modes on the rejection efficiency are discussed.

References in corpus (4)

• Scattering of backward spin waves in a one-dimensional magnonic crystal
• Phase reciprocity of spin-wave excitation by a microstrip antenna
• Resonant scattering of spin waves from a region of inhomogeneous magnetic field in a ferromagnetic film
• Design and optimization of one-dimensional ferrite-film based magnonic crystals

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