A micro-structured ion-implanted magnonic crystal
A micro-structured ion-implanted magnonic crystal
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DOI：
10.1063/1.4807721
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发表时间：
2013-05-20
影响因子：
4
通讯作者：
Hillebrands, Burkard
中科院分区：
文献类型：
--
作者：
Obry, Bjoern;Pirro, Philipp;Hillebrands, Burkard
研究了自旋波在局域离子注入微结构磁晶体波导中的传播。辐照引起饱和磁化强度沿波导沿着的周期性变化。因此，自旋波透射谱呈现出一组频带，其中自旋波传播被抑制。饱和磁化强度的7%的微弱修改足以将带隙中的自旋波传输降低10倍。这些结果证明了局域离子注入用于制造有效的微米和纳米尺寸的磁振子自旋电子学应用的磁振子晶体的适用性。(C)2013 AIP Publishing LLC.
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. (C) 2013 AIP Publishing LLC.