角分辨光电子能谱技术及其应用进展

角分辨光电子能谱（ARPES）是研究晶体表面电子结构,如能带,费米面,以及多体相互作用的重要工具。本文概述了光电子激发的一般过程和单粒子近似下的理论模型。详细讨论了角分辨光电子能谱的能带勾画（Energy Band Mapping）和费米面成像（Fermi Surface Mapping）技术,以及高分辨下的角分辨光电子能谱在强相关体系研究中的应用。文章最后简单介绍了当前角分辨光电子能谱研究的新进展,如研究宽禁带半导体材料的表面电子结构,有机功能材料与金属的界面,金属超薄膜中的量子阱态,以及高温超导机理研究等。

PROGRESS OF ANGLE-RESOLVED PHOTOEMISSION AND ITS APPLICATION

The angle_resolved photoemission (ARPES) is a powerful experiment method to study the surface electronic structure of crystals, such as energy bands, Fermi surface, and many_body interaction. In this paper, we will describe the process of photoemission and the theoretical models under the single_particle similarity at first. Then the "Energy Band Mapping", the "Fermi Surface Mapping", and the applications of high resolution ARPES in highly correlated electron systems will be also discussed in detail. At last, we introduce the recent progress of ARPES application, such as the surface electronic structure of wide_band gap semiconductors, the interface of organic functional materials, the quantum_well states of ultra_thin metal films, and some important discoveries in high Tc superconductors