Low-damping spin-wave propagation in a micro-structured Co2Mn0.6Fe0.4Si Heusler waveguide
Low-damping spin-wave propagation in a micro-structured Co2Mn0.6Fe0.4Si Heusler waveguide
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DOI：
10.1063/1.3693391
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发表时间：
2012-03-12
影响因子：
4
通讯作者：
Hillebrands, B.
中科院分区：
文献类型：
--
作者：
Sebastian, T.;Ohdaira, Y.;Hillebrands, B.
本文报道了自旋波在微结构Co2Mn0.6Fe0.4Si（CMFS）Heusler波导中的传播研究。与常用的Ni 81 Fe 19相比，这种化合物的磁损耗降低，允许通过布里渊光散射（BLS）显微镜观察高达75 μ m的距离上的自旋波传播。在线性区，自旋波振幅的最大衰减长度为16.7 μ m，通过相位分辨BLS技术估计所观察到的自旋波模的相干长度至少为16 μ m。(C)2012年美国物理学会。[http：//dx.doi.org/10.1063/1.3693391]
We report on the investigation of spin-wave propagation in a micro-structured Co2Mn0.6Fe0.4Si (CMFS) Heusler waveguide. The reduced magnetic losses of this compound compared to the commonly used Ni81Fe19, allow for the observation of spin-wave propagation over distances as high as 75 mu m via Brillouin light scattering (BLS) microscopy. In the linear regime, a maximum decay length of 16.7 mu m of the spin-wave amplitude was found. The coherence length of the observed spin-wave modes was estimated to be at least 16 mu m via phase-resolved BLS techniques. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3693391]