Structural Control of Domain Wall Depinning Fields in Nanostructured Fe Crossbar Patterns
Structural Control of Domain Wall Depinning Fields in Nanostructured Fe Crossbar Patterns
复制标题
纳米结构铁横杆图案中磁畴壁脱钉场的结构控制
DOI：
10.1109/tmag.2011.2146760
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发表时间：
2011
影响因子：
2.1
通讯作者：
K. Matsuyama
中科院分区：
文献类型：
--
作者：
T. Takashima;K. Ito;K. Noda;T. Tanaka;K. Matsuyama
采用磁力显微镜观察和微磁模拟的方法，研究了不同棒材宽度（100 ~ 380 nm）和不同薄膜厚度（10 ~ 30 nm）的铁交棒结的畴壁（DW）钉钉性能。实测的DW脱屑场与微磁模拟预测的条形条宽度有明显的相关性。仿真结果表明，横向DW在十字交界处稳定，脱屑过程由非均匀磁化旋转触发，呈时间屈曲构型。
Domain wall (DW) pinning properties in Fe crossbar junctions with various nominal bar widths (100-380 nm) and film thicknesses (10-30 nm) are studied by magnetic force microscopy observation and micromagnetic simulation. The measured DW depinning fields present the marked bar width dependence as predicted from micromagnetic simulations. Simulation results suggest that the transverse DW is stabilized at the cross junction, and the depinning process is triggered by nonuniform magnetization rotation, taking the temporal buckling configuration.