Bulk-edge and bulk-hinge correspondence in inversion-symmetric insulators
We show that a slab of a three-dimensional inversion-symmetric higher-order topological insulator (HOTI) in class A is a 2D Chern insulator, and that in class AII is a 2D Z_{2} topological insulator. We prove it by considering a process of cutting the three-dimensional inversion-symmetric HOTI along...
| Published in: | Physical Review Research |
|---|---|
| Main Authors: | , , |
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2020-03-01
|
| Online Access: | http://doi.org/10.1103/PhysRevResearch.2.013300 |