Organic topological insulators (OTI): a dream coming true?  

作　　者：Danfeng Zhi Chong-an Di Daoben Zhu 

机构地区：[1]Beijing National Laboratory for Molecular Sciences,CAS Key Laboratory of Organic Solids,Institute of Chemistry,Chinese Academy of Sciences,China [2]University of Chinese Academy of Sciences,China

出　　处：《National Science Review》2020年第6期996-997,共2页国家科学评论（英文版）

基　　金：This work was supported by the Major State Basic Research Development Program(2017YFA0204703,2018YF-E0200702);the Key Research Program of Frontier Sciences,CAS(QYZDY-SSW-SLH024).

摘　　要：Topological insulators(TIs)are a class of materials with insulating bulk states but exotic metallic states on their surfaces[1].Benefiting from topological boundary states,TIs have become one of the most important topics in condensed materials,not only because they offer a unique perspective for revealing the origin of various quantum phases,but also because of their potential applications in spintronics and quantum computing devices.The first experimental report of a two-dimensional(2D)TI in 2007 was based on observation of a quantum spin Hall insulator state in HgTe quantum[2].Subsequently,several 2D and three-dimensional(3D)TIs,including HgTe,Bi2Te3,TlBiTe2 and Heusler compounds[3-7],were reported.Despite such achievements,chemists and physicists have sustained interest in exploring novel TIs.Organic TIs(OTIs),with their relatively weakly correlated nature,represent a dream category for researchers because of the potential unveiled topological behaviors of such TIs.

关 键 词：TOPOLOGICAL quantum INSULATOR 

分 类 号：O469[理学—凝聚态物理] TB302[理学—电子物理学]