Acta Physica Sinica, Volume. 68, Issue 22, 226101-1(2019)
Fig. 1. A schematic diagram of the boundary modes of topological matter. The line with
corresponds to conventional topological matters which host gapless modes whose dimensions are one-dimensional lower than the system dimension. The lines with
correspond to higher-order topological matters which host gapless modes whose dimensions are
Fig. 2. From first-order topological insulator to second-order topological insulator. (a) Energy spectra for a sample with open boundary condition in the
Fig. 3. Constructing two-dimensional second-order topological insulator by using one-dimensional topological insulator: (a) A schematic diagram of the SSH chain; (b) using the one-dimensional SSH chains to construct a two-dimensional second-order topological insulator, within each small square, there is a -flux. 从一维一阶拓扑绝缘体到二维二阶拓扑绝缘体 (a) 一维SSH链的示意图; (b) 利用一维SSH链构造二维二阶拓扑绝缘体, 每个单位元胞中有一个 磁通
Get Citation
Copy Citation Text
Zhong-Bo Yan.
Received: Jul. 18, 2019
Accepted: --
Published Online: Sep. 17, 2020
The Author Email: