Spin-wave frequency division multiplexing in an yttrium iron garnet microstripe magnetized by inhomogeneous field
Spin-wave frequency division multiplexing in an yttrium iron garnet microstripe magnetized by inhomogeneous field
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DOI：
10.1063/1.5127881
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发表时间：
2019-10
影响因子：
4
通讯作者：
Zhizhi Zhang;Zhizhi Zhang;M. Vogel;J. Holanda;M. Jungfleisch;Changjiang Liu;Yi Li;Yi Li;J. Pearson;R. Divan;Wei Zhang;Axel Hoffmann;Axel Hoffmann;Y. Nie;V. Novosad
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文献类型：
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作者：
Zhizhi Zhang;Zhizhi Zhang;M. Vogel;J. Holanda;M. Jungfleisch;Changjiang Liu;Yi Li;Yi Li;J. Pearson;R. Divan;Wei Zhang;Axel Hoffmann;Axel Hoffmann;Y. Nie;V. Novosad
自旋波是在宽频率范围内进行信息处理和传输的有希望的候选者。在磁振子器件的实现中，自旋波频率的分频是并行信息处理的关键。在这项工作中，我们展示了一个概念验证自旋波频分复用方法磁化均匀的磁性微条纹与非均匀的字段。对称性破缺的附加场是由简单地放置在横向接近波导的坡莫合金条引入的。不同频率的自旋波可以在空间中沿着共享波导独立、同时、分离地传播。这项工作为磁振子信息的并行传输和处理带来了新的潜力。
Spin waves are promising candidates for information processing and transmission in a broad frequency range. In the realization of magnonic devices, the frequency depended division of the spin wave frequencies is a critical function for parallel information processing. In this work, we demonstrate a proof-of-concept spin-wave frequency division multiplexing method by magnetizing a homogenous magnetic microstripe with an inhomogeneous field. The symmetry breaking additional field is introduced by a permalloy stripe simply placed in lateral proximity to the waveguide. Spin waves with different frequencies can propagate independently, simultaneously and separately in space along the shared waveguide. This work brings new potentials for parallel information transmission and processing in magnonics.