کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9868270 1530685 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Biased switching of dipolar interacting nanoparticles in a periodic array
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
Biased switching of dipolar interacting nanoparticles in a periodic array
چکیده انگلیسی
We study the switching behavior of a patterned cylinder array in terms of the Landau-Lifshitz-Gilbert equation, including the effect of applied magnetic field, shape anisotropy, crystalline anisotropy, and dipolar interaction between particles. The condition of uncorrelated switching is obtained when the strength of dipolar coupling varies. It shows that a high anisotropy is needed to overcome the strong dipolar interaction in order to ensure the uncorrelated switching. Under the condition of uncorrelated switching, the switching of a single magnetic moment is still much different from the switching of an isolated magnetic moment (without dipolar interaction). The distributions of the critical switching field and switching time of a single magnetic moment for the different configurations of magnetic moments are obtained. By applying a transverse bias field, both the large critical switching field and the switching time can be effectively reduced.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 338, Issues 3–5, 2 May 2005, Pages 373-378
نویسندگان
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