# 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, 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

#### References

SHOWING 1-10 OF 58 REFERENCES

Quantum anomalous Hall effect in graphene from Rashba and exchange effects

- Physics
- 2010

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 exchange… Expand

Dirac semimetal and topological phase transitions in A 3 Bi ( A = Na , K, Rb)

- Physics
- 2012

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 effective… Expand

Three-dimensional Dirac semimetal and quantum transport in Cd3As2

- Physics
- 2013

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-protected… Expand

Chern semimetal and the quantized anomalous Hall effect in HgCr2Se4.

- Physics, Medicine
- Physical review letters
- 2011

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

- Physics
- 2011

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 the… Expand

Localized edge states in two-dimensional topological insulators: Ultrathin Bi films

- Physics
- 2011

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-state… Expand

Topological obstructed atomic limit insulators by annihilating Dirac fermions

- Physics
- 2021

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.

- Materials Science, Physics
- Nature communications
- 2012

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

- Physics, Medicine
- Science
- 2006

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 telluride… Expand

Topological semimetal and Fermi-arc surface states in the electronic structure of pyrochlore iridates

- Physics
- 2011

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 of… Expand