Axial and azimuthal spin-wave eigenmodes in rolled-up permalloy stripes
Axial and azimuthal spin-wave eigenmodes in rolled-up permalloy stripes
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DOI：
10.1063/1.3700809
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发表时间：
2012-05-28
影响因子：
4
通讯作者：
Mendach, Stefan
中科院分区：
文献类型：
--
作者：
Balhorn, Felix;Jeni, Simon;Mendach, Stefan
我们实验实现了卷起的坡莫合金条带，形成了三维的环形铁磁结构。通过微波吸收光谱，我们发现在退磁场阈值以上发生多个共振，该阈值依赖于环的轴向宽度。我们的实验数据可以很好地模拟轴向和方位自旋波的限制。(C)2012年美国物理研究所。[http://dx.doi.org/10.1063/1.3700809]
We experimentally realized rolled-up permalloy stripes to form three-dimensional ring-like ferromagnetic structures. By means of microwave absorption spectroscopy, we find multiple resonances occurring above a demagnetization field threshold which depends on the ring's axial width. Our experimental data can be well modeled by assuming both axial and azimuthal spin-wave confinement. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3700809]