Micromagnetic Investigation of the S-State Reconfigurable Logic Element

Magnetic nanostructures are promising for nonvolatile data storage applications, as well as for reconfigurable logic devices. The derived magnetic logic concepts are commonly relying on the magnetostatic coupling of small ensembles or larger chains and networks of nanostructures. Recently, we presented a simple single-layer logic element based on an S-shaped geometry. This reconfigurable device can be integrated with magnetoresistive elements and is relatively simple to fabricate. We present a detailed micromagnetic analysis of the geometrical parameter space in which the logic element performs reliably. The influence of imperfections on the device characteristics, that is, sidewall roughness and roundedness of the edges, is investigated. Special attention is paid to obtain configurations with symmetric input field values.

磁性纳米结构在非易失性数据存储应用以及可重构逻辑器件方面很有前景。衍生的磁性逻辑概念通常依赖于小的组合体或更大的纳米结构链及网络的静磁耦合。最近，我们提出了一种基于S形几何结构的简单单层逻辑元件。这种可重构器件可以与磁阻元件集成，并且制造相对简单。我们对逻辑元件能可靠运行的几何参数空间进行了详细的微磁分析。研究了缺陷对器件特性的影响，即侧壁粗糙度和边缘的圆润度。特别注意获得具有对称输入场值的配置。