从化学家的角度看拓扑绝缘体。
Topological insulators from a chemist's perspective.
机构信息
Institut für Anorganische und Analytische Chemie, Johannes-Gutenberg-Universität, Staudinger Weg 9, 55128 Mainz, Germany.
出版信息
Angew Chem Int Ed Engl. 2012 Jul 16;51(29):7221-5. doi: 10.1002/anie.201202480. Epub 2012 Jun 8.
PMID:22684869
Abstract
Heavy stuff: Topological insulators are formed of heavy atoms and host special surface or edge states. The electronic structure is characterized by a Dirac cone within a bulk band gap (see picture) that is generated by strong spin-orbit coupling. A chemist's perspective in terms of bonds, bands, symmetry, and nuclear charge is provided.
摘要
重元素
拓扑绝缘体由重原子组成，具有特殊的表面或边缘态。其电子结构的特点是在体带隙内存在狄拉克锥（见示意图），这是由强自旋轨道耦合产生的。从键、能带、对称性和核电荷的角度提供了化学家的观点。
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