Studies on the electronic structures of three-dimensional topological insulators by angle resolved photoemission spectroscopy  

作　　者：Yulin Chen (1) (2) (3) 

机构地区：[1]1. Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford, OX1 3PU, UK2. Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA3. Geballe Laboratory for Advanced Materials, Departments of Physics and Applied Physics, Stanford University, Stanford, CA, 94305, USA

出　　处：《Frontiers of physics》2012年第2期175-192,共18页物理学前沿（英文版）

摘　　要：Three-dimensional （3D） topological insulators represent a new state of quantum matter with a bulk gap and odd number of relativistic Dirac fermions on the surface. The unusual surface states of topological insulators rise from the nontrivial topology of their electronic structures as a result of strong spin-orbital coupling. In this review, we will briefly introduce the concept of topological insu- lators and the experimental method that can directly probe their unique electronic structure： angle resolved photoemission spectroscopy （ARPES）. A few examples are then presented to demonstrate the unique band structures of different families of topological insulators and the unusual properties of the topological surface states. Finally, we will briefly discuss the future development of topological quantum materials.Three-dimensional （3D） topological insulators represent a new state of quantum matter with a bulk gap and odd number of relativistic Dirac fermions on the surface. The unusual surface states of topological insulators rise from the nontrivial topology of their electronic structures as a result of strong spin-orbital coupling. In this review, we will briefly introduce the concept of topological insu- lators and the experimental method that can directly probe their unique electronic structure： angle resolved photoemission spectroscopy （ARPES）. A few examples are then presented to demonstrate the unique band structures of different families of topological insulators and the unusual properties of the topological surface states. Finally, we will briefly discuss the future development of topological quantum materials.

关 键 词：topological insulator （TI） PHOTOEMISSION ARPES 

分 类 号：O613.71[理学—无机化学] TM262[理学—化学]