تقرير
Sub-micrometer near-field focusing of spin waves in ultrathin YIG films
| العنوان: | Sub-micrometer near-field focusing of spin waves in ultrathin YIG films |
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| المؤلفون: | Divinskiy, B., Thiery, N., Vila, L., Klein, O., Beaulieu, N., Youssef, J. Ben, Demokritov, S. O., Demidov, V. E. |
| المصدر: | Appl. Phys. Lett. 116, 062401 (2020) |
| سنة النشر: | 2020 |
| المجموعة: | Condensed Matter Physics (Other) |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics, Physics - Applied Physics |
| الوصف: | We experimentally demonstrate tight focusing of a spin wave beam excited in extended nanometer-thick films of Yttrium Iron Garnet by a simple microscopic antenna functioning as a single-slit near-field lens. We show that the focal distance and the minimum transverse width of the focal spot can be controlled in a broad range by varying the frequency/wavelength of spin waves and the antenna geometry. The experimental data are in good agreement with the results of numerical simulations. Our findings provide a simple solution for implementation of magnonic nano-devices requiring local concentration of the spin-wave energy. |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1063/1.5131689 |
| URL الوصول: | http://arxiv.org/abs/2002.04284 |
| رقم الأكسشن: | edsarx.2002.04284 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1063/1.5131689 |
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