论文标题
沿磁接口的边缘电流的量化:K理论方法
Quantization of edge currents along magnetic interfaces: A K-theory approach
论文作者
论文摘要
本文的目的是研究二维材料沿磁界面(也称为磁性壁)的拓扑电流的传播。我们考虑与通用磁性多间隙相关的紧密结合磁模型,并描述可以得出散装二元性的K理论设置。然后,详细考虑了iWatsuka磁场的局部磁场和(非微不足道)情况的(琐碎)情况。这是一项教学准备工作,旨在预测对更复杂的多面磁系统的研究。
The purpose of this paper is to investigate the propagation of topological currents along magnetic interfaces (also known as magnetic walls) of a two-dimensional material. We consider tight-binding magnetic models associated to generic magnetic multi-interfaces and describe the K-theoretical setting in which a bulk-interface duality can be derived. Then, the (trivial) case of a localized magnetic field and the (non trivial) case of the Iwatsuka magnetic field are considered in full detail. This is a pedagogical preparatory work that aims to anticipate the study of more complicated multi-interface magnetic systems.