Spin–Orbit Torque Nano-oscillators by Dipole-Field-Localized Spin Wave Modes
| العنوان: | Spin–Orbit Torque Nano-oscillators by Dipole-Field-Localized Spin Wave Modes |
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| المؤلفون: | Chi Zhang, Inhee Lee, Yong Pu, Sergei A. Manuilov, Denis V. Pelekhov, P. Chris Hammel |
| المصدر: | Nano Letters. 21:10208-10214 |
| بيانات النشر: | American Chemical Society (ACS), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Condensed Matter - Materials Science, Condensed Matter - Mesoscale and Nanoscale Physics, Mechanical Engineering, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), Materials Science (cond-mat.mtrl-sci), FOS: Physical sciences, General Materials Science, Bioengineering, General Chemistry, Condensed Matter Physics |
| الوصف: | We demonstrate a high-quality spin orbit torque nano-oscillator comprised of spin wave modes confined by the magnetic field by the strongly inhomogeneous dipole field of a nearby micromagnet. This approach enables variable spatial confinement and systematic tuning of magnon spectrum and spectral separations for studying the impact of multi-mode interactions on auto-oscillations. We find these dipole field-localized spin wave modes exhibit good characteristic properties as auto-oscillators--narrow linewidth and large amplitude--while persisting up to room temperature. We find that the linewidth of the lowest-lying localized mode is approximately proportional to temperature in good agreement with theoretical analysis of the impact of thermal fluctuations. This demonstration of a clean oscillator with tunable properties provides a powerful tool for understanding the fundamental limitations and linewidth contributions to improve future spin-Hall oscillators. corrected funding number, added Supplementary Information, revised manuscript |
| تدمد: | 1530-6992 1530-6984 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb27c7123d88a3a28a07231ab1ce3eb0 https://doi.org/10.1021/acs.nanolett.1c03075 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....eb27c7123d88a3a28a07231ab1ce3eb0 |
| قاعدة البيانات: | OpenAIRE |
Find this issue from the American Chemical Society | تدمد: | 15306992 15306984 |
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