With the advent of high brilliance X-ray sources such as the so-called Third Generation Synchrotron Radiation Sources, the X-Ray Free Electron Laser Sources and the planned Diffraction Limited Storage Rings, experiments using coherent X-ray beams to study the structure and dynamics of materials are becoming increasingly popular. In this talk we will briefly review the use of X-ray Photon Correlation Spectroscopy at Grazing Incidence to study the dynamics of surfaces and interfaces. Applications have ranged from the study of liquid and polymeric surface fluctuations, to dynamics of buried inhomogeneous nanostructures, domains in magnetic films, reconfigurations at metal surfaces and non-equilibrium phenomena. We will also discuss possible future developments in this area of research.
This work has been supported by Grants Nos. DE-SC0003678 and DE-FG02-04ER46173 from Basic Energy Sciences, U.S. Department of Energy.