کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1805637 | 1024696 | 2006 | 11 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Magnetostatic interactions in dense nanowire arrays Magnetostatic interactions in dense nanowire arrays](/preview/png/1805637.png)
We demonstrate the importance of magnetostatic interactions in dense arrays of ferromagnetic nanowires. Beginning from a simple micromagnetic model, we have calculated the interaction field for saturated magnetization in the plane of the array (perpendicular to the axes of the wires) and normal to the plane, using a hybrid (numerical and analytical) strategy. The slope of interaction field versus wire length changes dramatically at the transition between a dipolar regime (at very small lengths) and a monopolar regime (for longer nanowires). We present the interaction fields and the applied fields at saturation for large nanowire arrays. These results are compared with experiment for electrodeposited arrays, and very good agreement is obtained. This shows that the high field behavior of such arrays is dominated by magnetostatic effects and that a nanowire array behaves like a double-sided distribution of magnetic monopoles.
Journal: Journal of Magnetism and Magnetic Materials - Volume 297, Issue 1, February 2006, Pages 60–70