纳米结构静磁自旋波导中的色散和自旋波隧穿
Dispersion and spin wave "tunneling" in nano-structured magnetostatic spin waveguides
摘要：
在微米尺度自旋波导中测量了铁磁金属CoTaZr中的静磁自旋波色散和损耗。结果与自旋波色散的模型计算结果吻合得很好。测得的衰减长度为3 μ m，比从这些细导线中的涡流预测的衰减长度短几个数量级。自旋波有效地“隧道”通过空气间隙，产生的聚焦离子束蚀刻，大至1.5微米。
英文摘要：
Magnetostatic spin wave dispersion and loss are measured in micron scale spin wave-guides in ferromagnetic, metallic CoTaZr. Results are in good agreement with model calculations of spin wave dispersion. The measured attenuation lengths, of the order of 3um, are several of orders of magnitude shorter than that predicted from eddy currents in these thin wires. Spin waves effectively "tunnel" through air gaps, produced by focused ion beam etching, as large as 1.5 um.
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