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arXiv · 1304.7122

A micro-structured ion-implanted magnonic crystal

Björn Obry·Philipp Pirro·Thomas Brächer·Andrii V. Chumak·Julia Osten·Florin Ciubotaru·Alexander A. Serga·Jürgen Fassbender·Burkard Hillebrands
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Abstract

We investigate spin-wave propagation in a microstructured magnonic-crystal waveguide fabricated by localized ion implantation. The irradiation caused a periodic variation in the saturation magnetization along the waveguide. As a consequence, the spin-wave transmission spectrum exhibits a set of frequency bands, where spin-wave propagation is suppressed. A weak modification of the saturation magnetization by 7% is sufficient to decrease the spin-wave transmission in the band gaps by a factor of 10. These results evidence the applicability of localized ion implantation for the fabrication of efficient micron- and nano-sized magnonic crystals for magnon spintronic applications.

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Björn Obry, Philipp Pirro, Thomas Brächer, Andrii V. Chumak, Julia Osten, Florin Ciubotaru, Alexander A. Serga, Jürgen Fassbender, Burkard Hillebrands. 2013-04-26. A micro-structured ion-implanted magnonic crystal. https://doi.org/10.1063/1.4807721

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