论文标题
拓扑开关和可控的准1D电线
Topological quantum switch and controllable quasi 1D wires in antimonene
论文作者
论文摘要
基于最近发现的弯曲抗偏二烯的非平凡拓扑，我们提出了量化开关的概念设计，该量化开关受拓扑保护和创建可配置的1D线通道的机制。 我们表明，可以通过打破反转对称性（将对称性从$ s_6 $减少到$ c_3 $）来打开和关闭该系统中拓扑所需的边缘状态，这可以通过门控系统来实现。这表明可以创建由拓扑投影的现场效应量子开关。 其次，我们表明，通过在不同区域的局部门控具有不同极性的系统，在其界面上创建了一个类似孤子的域壁，该界面构成了一个受保护的电子状态，可以通过封闭式掺杂来访问传输。
Based on the recently found non-trivial topology of buckled antimonene, we propose the conceptual design of a quantized switch that is protected by topology and a mechanism to create configurable 1D wire channels. We show that the topologically required edge states in this system can be turned on and off by breaking the inversion symmetry (reducing the symmetry from $S_6$ to $C_3$), which can be achieved by gating the system. This is shown to create a field-effect quantum switch projected by topology. Secondly we show that by locally gating the system with different polarity in different areas, a soliton-like domain wall is created at their interface, which hosts a protected electronic state, in which transport could be accessed by gated doping.
