Three-dimensional topological insulators in the octahedron-decorated cubic lattice
Three-dimensional topological insulators in the octahedron-decorated cubic lattice
复制标题
八面体装饰立方晶格中的三维拓扑绝缘体
DOI:
10.1103/physrevb.84.075105
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发表时间:
2011-01
影响因子:
3.7
通讯作者:
Guo-Xiang Wang
中科院分区:
文献类型:
--
作者:
Jing-Min Hou;Wen-Xin Zhang;Guo-Xiang Wang
We investigate a tight-binding model of the octahedron-decorated cubic lattice with spin-orbit coupling. We calculate the band structure of the lattice and evaluate the Z_2 topological indices. According to the Z_2 topological indices and the band structure, we present the phase diagrams of the lattice with different filling fractions. We find that the $(1;111)$ and $(1;000)$ strong topological insulators occur in some range of parameters at 1/6, 1/2 and 2/3 filling fractions. Additionally, the $(0;111)$ weak topological insulator is found at 1/6 and 2/3 filing fractions. We analyze and discuss the characteristics of these topological insulators and their surfaces states.
DOI:
10.1136/ebmh.11.4.102
发表时间:
2008-10
期刊:
Evidence Based Mental Health
影响因子:
--
作者:
P. Cochat;L. Vaucoret;J. Sarles
通讯作者:
P. Cochat;L. Vaucoret;J. Sarles