تقرير
Hybrid spin Hall nano-oscillators based on ferromagnetic metal/ferrimagnetic insulator heterostructures
| العنوان: | Hybrid spin Hall nano-oscillators based on ferromagnetic metal/ferrimagnetic insulator heterostructures |
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| المؤلفون: | Ren, Haowen, Zheng, Xin Yu, Channa, Sanyum, Wu, Guanzhong, O'Mahoney, Daisy A., Suzuki, Yuri, Kent, Andrew D. |
| المصدر: | Ren, H., Zheng, X.Y., Channa, S. et al. Hybrid spin Hall nano-oscillators based on ferromagnetic metal/ferrimagnetic insulator heterostructures. Nat Commun 14, 1406 (2023). https://doi.org/10.1038/s41467-023-37028-4 |
| سنة النشر: | 2022 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: | Spin-Hall nano-oscillators (SHNOs) are promising spintronic devices to realize current controlled GHz frequency signals in nanoscale devices for neuromorphic computing and creating Ising systems. However, traditional SHNOs -- devices based on transition metals -- have high auto-oscillation threshold currents as well as low quality factors and output powers. Here we demonstrate a new type of hybrid SHNO based on a permalloy (Py) ferromagnetic-metal nanowire and low-damping ferrimagnetic insulator, in the form of epitaxial lithium aluminum ferrite (LAFO) thin films. The superior characteristics of such SHNOs are associated with the excitation of larger spin-precession angles and volumes. We further find that the presence of the ferrimagnetic insulator enhances the auto-oscillation amplitude of spin-wave edge modes, consistent with our micromagnetic modeling. This hybrid SHNO expands spintronic applications, including providing new means of coupling multiple SHNOs for neuromorphic computing and advancing magnonics. Comment: 13 pages, 5 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1038/s41467-023-37028-4 |
| URL الوصول: | http://arxiv.org/abs/2208.04539 |
| رقم الأكسشن: | edsarx.2208.04539 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1038/s41467-023-37028-4 |
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