Chiral Excitation of Exchange Spin Waves Using Gold Nanowire Grating

IF 2.6 4区 化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR Magnetochemistry Pub Date : 2023-08-03 DOI:10.3390/magnetochemistry9080199
L. Temdie, V. Castel, T. Reimann, Morris Lindner, C. Dubs, Gyandeep Pradhan, Jose Solano, R. Bernard, H. Majjad, Y. Henry, M. Bailleul, V. Vlaminck
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引用次数: 1

Abstract

We propose an experimental method for the unidirectional excitation of spin waves. By structuring Au nanowire arrays within a coplanar waveguide onto a thin yttrium iron garnet (YIG) film, we observe a chiral coupling between the excitation field geometry of the nanowire grating and several well-resolved propagating magnon modes. We report a propagating spin wave spectroscopy study with unprecedented spectral definition, wavelengths down to 130 nm and attenuation lengths well above 100 μm over the 20 GHz frequency band. The proposed experiment paves the way for future non-reciprocal magnonic devices.
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用金纳米线光栅手性激发交换自旋波
提出了一种单向激发自旋波的实验方法。通过在钇铁石榴石(YIG)薄膜上构建共面波导内的金纳米线阵列,我们观察到纳米线光栅的激发场几何形状与几个良好分辨的传播磁振子模式之间的手性耦合。我们报道了一项传播自旋波光谱研究,该研究具有前所未有的光谱清晰度,波长低至130 nm,衰减长度远高于100 μm,覆盖20 GHz频段。提出的实验为未来的非倒易磁器件铺平了道路。
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来源期刊
Magnetochemistry
Magnetochemistry Chemistry-Chemistry (miscellaneous)
CiteScore
3.90
自引率
11.10%
发文量
145
审稿时长
11 weeks
期刊介绍: Magnetochemistry (ISSN 2312-7481) is a unique international, scientific open access journal on molecular magnetism, the relationship between chemical structure and magnetism and magnetic materials. Magnetochemistry publishes research articles, short communications and reviews. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.
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