Vortex circulation patterns in planar microdisk arrays
Vortex circulation patterns in planar microdisk arrays
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DOI：
10.1063/1.4990990
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发表时间：
2017-06-26
影响因子：
4
通讯作者：
Fischer, Peter
中科院分区：
文献类型：
--
作者：
Velten, Sven;Streubel, Robert;Fischer, Peter
我们报道了一种磁X射线显微镜研究在六角形和蜂窝状晶格中排列的磁旋涡中的循环图案的形成。在蜂窝晶格中，我们在剩磁处观察到交替循环的有序相，而在六边形晶格中，形成了交替的小区域。边缘到边缘距离的变化表明，这些区域的大小随着静磁相互作用的增加而增大。微磁模拟表明，这些图形是在成核过程中形成磁通闭合状态的结果。由AIP出版公司出版。
We report a magnetic X-ray microscopy study of the pattern formation of circulation in arrays of magnetic vortices ordered in a hexagonal and a honeycomb lattice. In the honeycomb lattice, we observe at remanence an ordered phase of alternating circulations, whereas in the hexagonal lattice, small regions of alternating lines form. A variation in the edge-to-edge distance shows that the size of those regions scales with the magnetostatic interaction. Micromagnetic simulations reveal that the patterns result from the formation of flux closure states during the nucleation process. Published by AIP Publishing.