A micro-structured ion-implanted magnonic crystal

作者：Obry Bjoern^*; Pirro Philipp; Braecher Thomas; Chumak Andrii V; Osten Julia; Ciubotaru Florin; Serga Alexander A; Fas**ender Juergen; Hillebrands Burkard

来源：Applied Physics Letters, 2013, 102(20): 202403.

DOI：10.1063/1.4807721

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.

• 出版日期2013-5-20