A Fundamental View on Topologic Insulators： Spin-Orbit Splitting and Its Manifestation in Electron Spectroscopies  

作　　者：Friedrich Reinert 

机构地区：[1]Universitat Wiirzburg, Fakultgit furPhysik und Astronomie, Experimentelle Physik 7, 97070 Wiirzburg

出　　处：《Journal of Physical Science and Application》2016年第1期4-4,共1页物理科学与应用（英文版）

摘　　要：Topological insulators （TI） are a rather new class of materials which offer a great potential for applications in spintronics [1]. Their surface electronic structure is determined by both the particular symmetry and a strong spin-orbit coupling, which lift the spin degeneracy of the surface states. In the latter respect, there are certain parallels to metallic Rashba systems, which represent the so-called trivial topology case. Angle resolved pbotoemission spectroscopy （ARPES） [2] has been successfully used for the direct investigation of the electronic band-structure of solids and surfaces, in particular for revealing the characteristic band dispersion of TI systems [3]. After a short introduction into the concept of ＂topology＂ and the basics of ARPES, this presentation gives a summary about recent results on Rashba systems [4], topological insulators [5], and related surface systems.

关 键 词：自旋电子学 绝缘体 拓扑 电子光谱 轨道分裂 表面电子结构 自旋轨道耦合 BA系统 

分 类 号：O189[理学—数学] TN6[理学—基础数学]