Switching fields and their distributions in rounded-rectangle [Co/Pd](8) nanodots and nanorings with identical configuration
Switching fields and their distributions in rounded-rectangle [Co/Pd](8) nanodots and nanorings with identical configuration
复制标题
具有相同结构的圆角矩形[Co/Pd](8)纳米点和纳米环中的开关场及其分布
DOI：
10.1016/j.jmmm.2017.12.027
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发表时间：
2018
影响因子：
2.7
通讯作者：
Adeyeye A O
中科院分区：
文献类型：
--
作者：
Ren Y;Wang Y;He X D;Adeyeye A O
我们提出了两种不同类型的磁化反转行为相同配置的Co/Pd多层膜与圆角矩形纳米点和纳米环的不同的边到边的距离（S），通过使用聚焦磁光克尔测量和磁力显微镜测量。对于固定外径d = 580 nm的纳米点，开关场Hsw和开关场分布（SFD）几乎不随tos变化。然而，纳米点阵列的Hswand SFD可以容易地通过改变d来调制，这归因于尺寸效应。相比之下，HswandSFD强烈依赖于纳米环。与紧密堆积的纳米环的强耦合磁矩相比，纳米点之间的静磁相互作用可以忽略不计，这应该是所观察到的不同的磁化反转行为的原因。
We present two different types of magnetization reversal behaviors for the identically-configured Co/Pd multilayers with rounded-rectangular nanodots and nanorings for various edge-to-edge distances (s), by using focused magneto-optic Kerr measurements and magnetic force microscopy measurements. For the nanodots with a fixed outer diameter ofd= 580 nm, the switching field Hswand switching field distribution (SFD) are almost invariant with respect tos. However, the Hswand SFD for the nanodot arrays could be easily modulated by varyingd, which is ascribed to the size effect. In contrast, the Hswand SFD are strongly dependent onsfor the nanorings. Compared to the strongly coupled magnetic moments of the closely-packed nanorings, the magnetostatic interaction among nanodots is negligible, which should be responsible for the observed different magnetization reversal behaviors.