论文标题
在强耦合圆柱纳米线对中的三维磁状态的受控演化
Controlled Evolution of Three-Dimensional Magnetic States in Strongly Coupled Cylindrical Nanowire Pairs
论文作者
论文摘要
圆柱磁性纳米线是开发三维自旋设备的有前途的系统。在这里，我们在制造具有不同程度重叠的强耦合圆柱纳米线时模拟磁态的演变。通过改变电线之间的分离，可以调整交换和磁静电耦合的相对强度。因此，导致形成六个基本状态，这既取决于 - 线之间的分离和电线高度。特别是，观察到两个复杂的三维磁状态，一个3D Landau模式和一个螺旋域壁，出现了中间重叠的情况。我们遵循的磁相互作用和平行生长方案的竞争（同时生长两根电线）有利于这些反平行亚稳态状态的形成。这项工作显示了如何使用竞争相互作用的强耦合3D纳米结构的工程来创建复杂的旋转纹理。
Cylindrical magnetic nanowires are promising systems for the development of three-dimensional spintronic devices. Here, we simulate the evolution of magnetic states during fabrication of strongly-coupled cylindrical nanowires with varying degrees of overlap. By varying the separation between wires, the relative strength of exchange and magnetostatic coupling can be tuned. Hence leading to the formation of six fundamental states as a function of both inter-wire separation and wire height. In particular, two complex three-dimensional magnetic states, a 3D Landau Pattern and a Helical Domain wall, are observed to emerge for intermediate overlap. The competition of magnetic interactions and the parallel growth scheme we follow (growing both wires at the same time) favours the formation of these anti-parallel metastable states. This works shows how the engineering of strongly coupled 3D nanostructures with competing interactions can be used to create complex spin textures.
