论文标题
腔诱导的手性边缘电流和二维电子系统中的自发磁化
Cavity induced chiral edge currents and spontaneous magnetization in two-dimensional electron systems
论文作者
论文摘要
我们考虑放置在旋转腔内的横向限制的二维电子气体（2DEG）。圆形极化电磁模式的分裂导致2DEG中基态自发性磁化，异常霍尔效应和手性边缘电流的出现。我们检查了两个特定限制电位的特定情况：无限壁和抛物线电位的磁化强度和边缘电流密度对系统尺寸的依赖性。我们表明，对边电流的顺磁性和直流电流的贡献在质上不同，对系统尺寸的依赖性不同。这些发现铺平了通往介质电子系统材料特性设计量子电动工程的途径。
We consider a laterally confined two-dimensional electron gas (2DEG), placed inside a gyrotropic cavity. Splitting of the circularly polarized electromagnetic modes leads to the emergence of the ground state spontaneous magnetization, anomalous Hall effect and chiral edge currents in 2DEG. We examine the dependence of the magnetization and edge current density on the system size for two particular cases of the confining potential: infinite wall and parabolic potentials. We show that paramagnetic and diamagnetic contributions to the edge currents have qualitatively different dependence on the system size. These findings pave the route to the design quantum electrodynamic engineering of the material properties of the mesoscopic electron systems.
