Spin wave hybridization via direct mapping of spin wave evolution in ferromagnetic microstructures
Spin wave hybridization via direct mapping of spin wave evolution in ferromagnetic microstructures
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DOI：
10.1063/1.3583566
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发表时间：
2011-05
影响因子：
3.2
通讯作者：
L. Bai;Y. Gui;Z. Chen;S. Shen;J. Nitta;Can-Ming Hu;L. Hayward;M. Wismayer;B. Southern
中科院分区：
文献类型：
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作者：
L. Bai;Y. Gui;Z. Chen;S. Shen;J. Nitta;Can-Ming Hu;L. Hayward;M. Wismayer;B. Southern
用微波光伏技术研究了单个磁性微带中的受限自旋波。通过调节外加磁场的方向，实现了表面模、边缘模和中心模之间的自旋波演化的直接映射。用理论和数值方法研究了激发态的演化，并与实验结果进行了很好的吻合。观察到的最显著的特征是模式排斥行为，这表明在自旋波谱中偶极占主导地位的部分存在模式杂化。
Confined spin waves in single magnetic microstrips are investigated using a microwave photovoltage technique. Direct mapping of the spin wave evolution between surface, edge, and central modes is achieved by tuning the direction of the applied magnetic field. Both theoretical and numerical methods are used to study the evolution of the excitations and provide excellent agreement with the experimental results. The most prominent feature observed is a mode repulsing behavior which indicates mode hybridization in the dipole dominated part of the spin wave spectrum.