Corpus ID: 237453316

From Atomic Semimetal to Topological Nontrivial Insulator

@inproceedings{Li2021FromAS,
  title={From Atomic Semimetal to Topological Nontrivial Insulator},
  author={Xiao-ping Li and Da-Shuai Ma and Cheng-Cheng Liu and Zhi-Ming Yu and Yugui Yao},
  year={2021}
}
  • Xiao-ping Li, Da-Shuai Ma, +2 authors Yugui Yao
  • Published 9 September 2021
  • Physics
Xiao-Ping Li, 2 Da-Shuai Ma, 2, ∗ Cheng-Cheng Liu, 2 Zhi-Ming Yu, 2 and Yugui Yao 2, † Centre for Quantum Physics, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE), School of Physics, Beijing Institute of Technology, Beijing, 100081, China Beijing Key Lab of Nanophotonics & Ultrafine Optoelectronic Systems, School of Physics, Beijing Institute of Technology, Beijing, 100081, China 

Figures and Tables from this paper

References

SHOWING 1-10 OF 58 REFERENCES
Quantum anomalous Hall effect in graphene from Rashba and exchange effects
We investigate the possibility of realizing quantum anomalous Hall effect in graphene. We show that a bulk energy gap can be opened in the presence of both Rashba spin-orbit coupling and an exchangeExpand
Dirac semimetal and topological phase transitions in A 3 Bi ( A = Na , K, Rb)
Three-dimensional (3D) Dirac point, where two Weyl points overlap in momentum space, is usually unstable and hard to realize. Here we show, based on the first-principles calculations and effectiveExpand
Three-dimensional Dirac semimetal and quantum transport in Cd3As2
Based on the first-principles calculations, we recover the silent topological nature of Cd3As2, a well known semiconductor with high carrier mobility. We find that it is a symmetry-protectedExpand
Chern semimetal and the quantized anomalous Hall effect in HgCr2Se4.
TLDR
It is predicted, based on first principles calculations, that such a novel quantum state can be realized in a known ferromagnetic compound HgCr2Se4, with a single pair of Weyl fermions separated in momentum space. Expand
Topological insulators and superconductors
Topological insulators are new states of quantum matter which cannot be adiabatically connected to conventional insulators and semiconductors. They are characterized by a full insulating gap in theExpand
Localized edge states in two-dimensional topological insulators: Ultrathin Bi films
We theoretically study the generic behavior of the penetration depth of the edge states in two-dimensional quantum spin Hall systems. We found that the momentum-space width of the edge-stateExpand
Topological obstructed atomic limit insulators by annihilating Dirac fermions
We show that annihilating a pair of Dirac fermions implies a topological transition from the critical semimetallic phase to an obstructed atomic limit insulator phase instead of a trivial insulator.Expand
Topological crystalline insulators in the SnTe material class.
TLDR
This work predicts the first material realization of topological crystalline insulator in the semiconductor SnTe by identifying its non-zero topological index and predicts that as a manifestation of this non-trivial topology, SnTe has metallic surface states with an even number of Dirac cones on high-symmetry crystal surfaces. Expand
Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
We show that the quantum spin Hall (QSH) effect, a state of matter with topological properties distinct from those of conventional insulators, can be realized in mercury telluride–cadmium tellurideExpand
Topological semimetal and Fermi-arc surface states in the electronic structure of pyrochlore iridates
We investigate novel phases that emerge from the interplay of electron correlations and strong spin-orbit interactions. We focus on describing the topological semimetal, a three-dimensional phase ofExpand
...
1
2
3
4
5
...