Direct Imaging of High‐Frequency Multimode Spin Wave Propagation in Cobalt‐Iron Waveguides Using X‐Ray Microscopy beyond 10 GHz,Physica Status Solidi-Rapid Research Letters

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Direct Imaging of High‐Frequency Multimode Spin Wave Propagation in Cobalt‐Iron Waveguides Using X‐Ray Microscopy beyond 10 GHz
Physica Status Solidi-Rapid Research Letters ( IF 2.5 ) Pub Date : 2020-12-01 , DOI: 10.1002/pssr.202070044
Nick Träger ₁ , Paweł Gruszecki _{2,

3} , Filip Lisiecki ₃ , Johannes Förster ₁ , Markus Weigand ₄ , Sebastian Wintz _{1,

5} , Hermann Stoll _{1,

6} , Hubert Głowiński ₃ , Piotr Kuświk ₃ , Maciej Krawczyk ₂ , Joachim Gräfe ₁

Affiliation

In article number 2000373, Nick Träger, Joachim Gräfe, and co‐workers report the observation of globally excited multimode spin wave propagation in magnonic CoFe waveguides via time‐resolved X‐ray microscopy, achieving spatial and temporal resolutions of <20 nm and <40 ps, respectively. By using an arbitrary waveform generator, spin waves up to 20.5 GHz are excited and imaged in real space. The result of a real‐space measurement is illustrated revealing the multimode character of the excitation and propagation within the waveguide. The blue spiral smoke represents the global continuous‐wave excitation field surrounding the magnonic waveguide during the excitation process.

中文翻译：

使用超过10 GHz的X射线显微镜对钴铁波导中的高频多模自旋波传播进行直接成像

在文章编号2000373中，NickTräger，JoachimGräfe和他的同事报告了通过时间分辨X射线显微镜观察到的磁振CoFe波导中全局激发的多模自旋波传播的观察结果，实现了<20 nm和<40的时空分辨率ps。通过使用任意波形发生器，可以激发高达20.5 GHz的自旋波并在实际空间中成像。图中显示了实空间测量的结果，揭示了波导内激发和传播的多模特征。蓝色的螺旋烟雾代表了在激发过程中围绕着强子波导管的整体连续波激发场。

更新日期：2020-12-01

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