Frontiers of Physics

, Volume 7, Issue 2, pp 175–192

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

Review Article

Abstract

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 insulators 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.

Keywords

topological insulator (TI) photoemission ARPES 

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Copyright information

© Higher Education Press and Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.Department of PhysicsUniversity of Oxford, Clarendon LaboratoryOxfordUK
  2. 2.Stanford Institute for Materials and Energy SciencesSLAC National Accelerator LaboratoryMenlo ParkUSA
  3. 3.Geballe Laboratory for Advanced Materials, Departments of Physics and Applied PhysicsStanford UniversityStanfordUSA

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