Journal
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
Volume 82, Issue 7, Pages -Publisher
PHYSICAL SOC JAPAN
DOI: 10.7566/JPSJ.82.073708
Keywords
topological insulator; superlattice; Chern number; weak topological phase; Wilson-Dirac model
Categories
Funding
- KAKENHI
- [23103502]
- [23103511]
- [25400388]
- [23340112]
- [23654128]
- [23540460]
- [25610101]
- Grants-in-Aid for Scientific Research [23340112, 25610101] Funding Source: KAKEN
Ask authors/readers for more resources
We explore novel topological phases realized in a superlattice system based on the Wilson-Dirac model. Our main focus is on a two-dimensional analogue of weak topological insulator phases. We find such phases as those characterized by gapless edge states that are protected by symmetry but sensitive to the orientation of the edge relative to the superlattice structure. We show that manifest and hidden reflection symmetries protect such weak topological phases, and propose bulk Z(2) indices responsible for the topological protection of the edge states.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available