【摘 要】
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Topological insulators (TIs) are a class of materials with insulating bulk states but exotic metallic states on their surfaces [1].Benefiting from topological b
【机 构】
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Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids,Institute o
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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,T1BiTe2 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.
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