تقرير
Imprinting of Antiferromagnetic Vortex States in NiO-Fe Nanostructures
العنوان: | Imprinting of Antiferromagnetic Vortex States in NiO-Fe Nanostructures |
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المؤلفون: | Ślęzak, M., Wagner, T., Bharadwaj, V. K., Gomonay, O., Kozioł-Rachwał, A., Menteş, T. O., Locatelli, A., Zając, M., Wilgocka-Ślęzak, D., Dróżdż, P., Ślęzak, T. |
سنة النشر: | 2024 |
المجموعة: | Condensed Matter |
مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Materials Science |
الوصف: | Magnetic vortices are topological spin structures frequently found in ferromagnets, yet novel to antiferromagnets. By combining experiment and theory, we demonstrate that in a nanostructured antiferromagnetic-ferromagnetic NiO(111)-Fe(110) bilayer, a magnetic vortex is naturally stabilized by magnetostatic interactions in the ferromagnet and is imprinted onto the adjacent antiferromagnet via interface exchange coupling. We use micromagnetic simulations to construct a corresponding phase diagram of the stability of the imprinted antiferromagnetic vortex state. Our in depth analysis reveals that the interplay between interface exchange coupling and the antiferromagnet magnetic anisotropy plays a crucial role in locally reorienting the N\'eel vector out-of-plane in the prototypical in-plane antiferromagnet NiO and thereby stabilizing the vortices in the antiferromagnet. |
نوع الوثيقة: | Working Paper |
URL الوصول: | http://arxiv.org/abs/2403.05151 |
رقم الأكسشن: | edsarx.2403.05151 |
قاعدة البيانات: | arXiv |
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