§16§Diffusion in solids and at interfaces is a very active area of research, as the contributions to this volume attest. §04§I Diffusion at the Vacuum-Solid and Gas-Solid Interface.- Surface Diffusion Measured Using Laser Induced Thermal Desorption: Hydrogen on Ru(00l).- Reflection High Energy Electron Diffraction Studies of Diffusion and Cluster Formation During Molecular Beam Epitaxy.- Laser-Induced Desorption Determinations of Surface Diffusion on Rh(111).- Mobility of Rare Gases Adsorbed on the (001) Surface of MgO.- Comparison of Equilibrium and Non-Equilibrium Diffusion Measurements for W(110)p(2-1)-O.- Hopping and Diffusion.- Diffusion at the Vacuum-Solid and Gas-Solid Interface: Some Comments.- II Diffusion at the Solid-Solid Interface, Surface Segregation and Bulk Diffusion.- Diffusion at Surfaces: Introductory Remarks.- Direct Observation of Atomic Motion on Surfaces.- Topography Modification and Microscopic Motion on Metal Surfaces.- Surface Self-Diffusion, Capillarity, and Surface Steps.- Radiation Enhanced Diffusion (RED) in a Sputtered Ag/Ni Layered System.- The Influence of Segregation on §04§ the Formation of Cu/Ni Alloy Films by Means of Evaporation.- Surface Properites of a Lead-Tin Alloy.- III Theoretical Models for Segregation and Diffusion.- Recent Developments in the Theory of Many-Body Processes: Implications for the Study of Surface Dynamics.- Computer Simulation of Segregation and Diffusion at Oxide Interfaces.- IV Nucleation at the Solid-Liquid Interface.- Geometrical Structure of Adlayers on Immersed Electrodes.- Electrochemical Processes in Small Systems.- Index of Contributors.
