تقرير
Modeling magnetic-field-induced domain wall propagation in modulated-diameter cylindrical nanowires
| العنوان: | Modeling magnetic-field-induced domain wall propagation in modulated-diameter cylindrical nanowires |
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| المؤلفون: | Fernandez-Roldan, J. A., De Riz, A., Trapp, B., Thirion, C., Toussaint, J. -C., Fruchart, O., Gusakova, D. |
| سنة النشر: | 2018 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: | Domain wall propagation in modulated-diameter cylindrical nanowires is a key phenomenon to be studied with a view to designing three-dimensional magnetic memory devices. This paper presents a theoretical study of transverse domain wall behavior under the influence of a magnetic field within a cylindrical nanowire with diameter modulations. In particular, domain wall pinning close to the diameter modulation was quantified, both numerically, using finite element micromagnetic simulations, and analytically. Qualitative analytical model for gently sloping modulations resulted in a simple scaling law which may be useful to guide nanowire design when analyzing experiments. It shows that the domain wall depinning field value is proportional to the modulation slope. Comment: 9 figures. Regular manuscript |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/1807.06253 |
| رقم الأكسشن: | edsarx.1807.06253 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |