论文标题
U形薄饼纳米管中的手性Walker分解
Chiral Walker breakdown in the U-shaped Permalloy nanotube
论文作者
论文摘要
通过微磁模拟研究了U形铁磁纳米管中横向结构域壁（DWS）的运动，该运动具有两种不同的几何限制。在单向磁场的驱动下，在低场和高磁场下的手性步行者分解过程下，手性依赖性的DW结构和速度分别可观察到。所有这些取决于手性的行为可以归因于几何限制中磁化的不同动力学。此外，DW结构对应用领域具有不同的响应和敏感性，从而导致层次结构和复杂的沃克分解过程。这为操纵DW手性提供了新的观点。
The motion of transverse domain walls (DWs) in U-shaped ferromagnetic nanotube which owns two different geometric confinements were investigated by micromagnetic simulation. Driven by unidirectional magnetic fields, the chirality-dependent DW structure and velocity under low fields and two phases of chiral Walker breakdown processes under high fields were observable, respectively. All these chirality-dependent behaviors can be attributed to the different dynamics of magnetizations in geometric confinements. Additionally, DW structures have different responses and sensitivity to applied fields, leading to a hierarchy and complex Walker breakdown processes. This supplies a new perspective for manipulating DW chirality.
