کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4610508 1338568 2014 32 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ferromagnetic thin multi-structures
ترجمه فارسی عنوان
چند ساختار نازک فرومغناطیس
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات آنالیز ریاضی
چکیده انگلیسی

In this paper, starting from the classical 3D non-convex and nonlocal micromagnetic energy for ferromagnetic materials, we determine, via an asymptotic analysis, the free energy of a multi-structure consisting of a nano-wire in junction with a thin film and of a multi-structure consisting of two joined nano-wires. We assume that the volumes of the two parts composing each multi-structure vanish with the same rate. In the first case, we obtain a 1D limit problem on the nano-wire and a 2D limit problem on the thin film, and the two limit problems are uncoupled. In the second case, we obtain two 1D limit problems coupled by a junction condition on the magnetization. In both cases, the limit problem remains non-convex, but now it becomes completely local.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Differential Equations - Volume 257, Issue 5, 1 September 2014, Pages 1591–1622
نویسندگان
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