Two-dimensional Dirac materials:Tight-binding lattice models and material candidates  

作　　者：Runyu Fan Lei Sun Xiaofei Shao Yangyang Li Mingwen Zhao 

机构地区：[1]School of Physics,Shandong University,Jinan 250100,China

出　　处：《ChemPhysMater》2023年第1期30-42,共13页化学物理材料（英文）

基　　金：the National Natural Science Founda-tion of China(No.12074215)and Taishan Scholar Program of Shandong Province.

摘　　要：The discovery of graphene has led to the devotion of intensive efforts,theoretical and experimental,to produce two-dimensional(2D)materials that can be used for developing functional materials and devices.This work provides a brief review of the recent developments in the lattice models of 2D Dirac materials and their relevant real material counterparts that are crucial for understanding the origins of 2D Dirac cones in electronic band structures as well as their material design and device applications.We focus on the roles of lattice symmetry,atomic orbital hybridization,and spin-orbit coupling in the presence of a Dirac cone.A number of lattice models,such as honeycomb,kagome,ruby,star,Cairo,and line-centered honeycomb,with different symmetries are reviewed based on the tight-binding approach.Inorganic and organic 2D materials,theoretically proposed or experimentally synthesized to satisfy these 2D Dirac lattice models,are summarized.

关 键 词：Dirac cones Two-dimensional materials Tight-binding model Lattice models 

分 类 号：TB34[一般工业技术—材料科学与工程]