论文标题
纳米带中的Bloch点
Bloch points in nanostrips
论文作者
论文摘要
复杂的磁性材料托管拓扑非平凡的粒子样物体（例如天空）正在深入研究，并且可以从根本上改变我们存储和处理数据的方式。一类重要的材料是与dzyaloshinskii-Moriya相互作用的呼吸材料。最近，已经证明，由两个具有相反手性的层组成的纳米风险可以在层之间的界面上托管两种不同类型的单个稳定BLOCH点。使用微磁模拟，我们表明，由两个具有相反手性的层组成的FeGE纳米弹性带可以在两种不同类型的任意组合中托管多个共存的Bloch点。我们表明，可以同时共存的BLOCH点的数量取决于条纹几何形状和单个Bloch点的类型。我们的仿真结果使我们能够预测适用于任意数量的BLOCH点的带状几何形状。我们展示了一个80bloch点配置验证预测的示例。
Complex magnetic materials hosting topologically non-trivial particle-like objects such as skyrmions are under intensive research and could fundamentally change the way we store and process data. One important class of materials are helimagnetic materials with Dzyaloshinskii-Moriya interaction. Recently, it was demonstrated that nanodisks consisting of two layers with opposite chirality can host a single stable Bloch point of two different types at the interface between the layers. Using micromagnetic simulations we show that FeGe nanostrips consisting of two layers with opposite chirality can host multiple coexisting Bloch points in an arbitrary combination of the two different types. We show that the number of Bloch points that can simultaneously coexist depends on the strip geometry and the type of the individual Bloch points. Our simulation results allow us to predict strip geometries suitable for an arbitrary number of Bloch points. We show an example of an 80-Bloch-point configuration verifying the prediction.
