Spin wave propagation in a ferrimagnetic thin film with perpendicular magnetic anisotropy
Spin wave propagation in a ferrimagnetic thin film with perpendicular magnetic anisotropy
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DOI：
10.1063/5.0024424
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发表时间：
2020-12
影响因子：
4
通讯作者：
Lu Sheng;Yawen Liu;Jilei Chen;Hanchen Wang;Jianyu Zhang;Mingfeng Chen;Ji Ma;Chuanpu Liu;Sa Tu;C. Nan;Haiming Yu
中科院分区：
文献类型：
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作者：
Lu Sheng;Yawen Liu;Jilei Chen;Hanchen Wang;Jianyu Zhang;Mingfeng Chen;Ji Ma;Chuanpu Liu;Sa Tu;C. Nan;Haiming Yu
铁石榴石作为一种重要的低阻尼磁绝缘体，为磁振子领域提供了一个理想的平台。在这项工作中，我们研究了自旋波在60 nm厚的TmIG膜垂直磁各向异性使用全电自旋波光谱的传播。静磁正向体积模式自旋波表现出完全可逆的传播。通过在低场区扫描面外磁场，自旋织构的创建和观察，同时，自旋波模式消失，这表明传播的自旋波被过滤的自旋织构。通过施加大的面内场，研究了自旋波在Damon-Eshbach组态中的传播。我们的研究结果提供了一个潜在的方法，探索可重构磁振子器件。
Iron garnets as an important type of low-damping magnetic insulator can provide an ideal platform for the field of magnonics. In this work, we study the propagation of spin waves in a 60 nm-thick TmIG film with perpendicular magnetic anisotropy using all-electrical spin wave spectroscopy. The magnetostatic forward volume mode spin waves show a fully reciprocal propagation. By sweeping out-of-plane magnetic fields in the low-field regime, spin textures are created and observed; meanwhile, the spin wave mode vanishes, which indicates that propagating spin waves are filtered by the spin textures. By applying a large in-plane field, spin wave propagation in a Damon–Eshbach configuration is studied. Our findings provide a potential method to explore reconfigurable magnonic devices.