ABSTRACT
In this review we discuss photoemission from solids and their surfaces. We concentrate in particular on angle-resolved photoemission which over the past few years has been developed into one of the most powerful spectroscopic methods for studying solids, particularly when used in conjunction with light sources such as synchrotron radiation. We discuss the basis of the technique, and briefly outline developments in experimental and theoretical methods. We then consider examples of the application to a range of problems, to study the electronic band structure of solids, to study surface states, to probe the orientation, lateral interaction and chemical state of atoms and molecules on surfaces, as well as to probe the crystallographic ordering at surfaces.
