Field-Controlled Phase-Rectified Magnonic Multiplexer
Field-Controlled Phase-Rectified Magnonic Multiplexer
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DOI：
10.1109/tmag.2015.2447010
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发表时间：
2015-11-01
影响因子：
2.1
通讯作者：
Kruglyak, V. V.
中科院分区：
文献类型：
--
作者：
Davies, C. S.;Sadovnikov, A. V.;Kruglyak, V. V.
用于改变自旋波传播特征的机制是支撑高频磁振子器件功能的关键组成部分。在这里，使用实验和微磁模拟，我们证明了一个磁振子多路复用器的可行性，其中自旋波束之间切换设备输出分支的极性的一个小的全球偏置磁场。由于静磁自旋波的色散中固有的各向异性，输出自旋波的相阵面相对于束传播的方向（群速度）不对称地倾斜。我们展示了如何在可变宽度的磁振子波导中对相位倾斜进行（部分）整流。
The mechanism used to alter the features of propagating spin waves is a key component underpinning the functionality of high-frequency magnonic devices. Here, using experiment and micromagnetic simulations, we demonstrate the feasibility of a magnonic multiplexer in which the spin-wave beam is toggled between device output branches by the polarity of a small global bias magnetic field. Due to the anisotropy inherent in the dispersion of magnetostatic spin waves, the phase fronts of the output spin waves are asymmetrically tilted relative to the direction of the beam propagation (group velocity). We show how the phase tilts could be (partly) rectified in the magnonic waveguides of variable widths.