In this book surface science is understood in a broadsense, taken to include two-dimensional structures such asthin films and superlattices. Thecontributions reflectcurrent research activities in surface and thin-film sciencein Latin-America, presenting a clear picture of the researchcenters, equipment and expertise available in the region inthis rapidly developing field of physics. The topics treatedcover the whole spectrum of the subject, with the latesttheoretical results beingreported alongside details ofindustrial applications such as materials characterizationand photovoltaic cells. Surface scientists, engineers andresearch admistrators will find this volume of interest.Proceedings of the Sixth Latin American Symposium on Surface Physics (SLAFS-6), Cusco, Peru, September 3-7, 1990In this book surface science is understood in a broadsense, taken to include two-dimensional structures such asthin films and superlattices. Thecontributions reflectcurrent research activities in surface and thin-film sciencein Latin-America, presenting a clear picture of the researchcenters, equipment and expertise available in the region inthis rapidly developing field of physics. The topics treatedcover the whole spectrum of the subject, with the latesttheoretical results beingreported alongside details ofindustrial applications such as materials characterizationand photovoltaic cells. Surface scientists, engineers andresearch admistrators will find this volume of interest.I Introductory Contributions.- The Sixth Latin American Symposium on Surface Physics.- Professor Nicol?s Cabrera Sanchez (1913-1989): A Family Perspective of His Scientific Career.- Don Nicol?s Cabrera in Mexico.- II Electronic Structure of Surfaces.- Dynamical Response of an Overlayer of Alkali-Metal Atoms Adsorbed on a Free-Electron Metal Surface.- Self-Diffusion by Place Exchange on Smooth Surfaces.- The European SynchrotrolS