4.Application Prospect
Materials synthesis still need to further improve the quality 1
Explore the possibility of new quantum devices and spintronics devices

L/O/G/O
Thank You!
Theory and Quantization of the The discovery experiment foundanomalous hall effect、 that a class of new Magnetic topological of 2D 3D topological topological insulators、 insulator material insulators Topological Bi2Se3 at the system in 2006. superconductor same time in 2009.
TI theory is to save the development of computer and information technology theory, it will guide the chip electronic orderly in accordance with the laws of the direction of running, thus reducing the generation of heat, relieve the bottleneck of the semiconductor technology development, it is very likely for the future of the information revolution brings great influence on the computer and the quantum computing.
2.Properties
Band structure in the body of this kind of material is insulator type, and its surface is always incompetent gap.
Surface metal state is very stable, basic not under the influence of impurities and disorderly.
Insulator is ative because the band gap between the band made there no electronic state.

1.Structure
Conductor
The energy band and valence band overlap together.So there are electronic state.It made conductor can conduct electricity.
Due to the spin orbit coupling effect, on the surface generated by time reversal symmetry, conservation can gap the spin of resolution of the surface electronic state.
L/O/G/O
Condensed matter physics
Topological Insulator
Topological Insulator
Traditionally solid materials
Insulators
Conductors

Topological Insulator

1.Structure
Electron spin according to their own direction so that can reduce the collision, i.e. reduce fever

4
2
Exploration was carried out on the surface state regulation
3
Advancing from the depth and breadth of research

4.Application Prospect

1.Structure
Topological Insulator
Due to the attraction of the atom, energy band and valence band overlap together, so it has the properties of conductive only at the edge.

The spin and orbital degrees of freedom are bundled together
3.Research Status
Topological insulators theory has developed rapidly in recent years.

Topological Insulator
Contents
1 Structure Properties
2 3 4
Research Status
Application Prospect

1.Structure
Insulator
• TI is currently a hot issue in the field
of condensed matter physics. • TI is a kind of very special insulators, According to the theoretical analysis, the band structure of this kind of material is a typical insulator type, at the Fermi level there is a gap. But there are always many Dirac electronic state through the energy gap on the surface of this materials, and due to the conducting states on the surface.