| *) The surface of a solid is its skin, an interface through which a body communicates or interacts with outer world, its environment. "...The surface ... may be changed by the surrounding medium either unintentionally (e.g. by corrosion) or intentionnally due to technological demands. Intentional changes are made in order to refine or protect surfaces ..." [Surf. and Thin Film Anal., ed. H. Bubert and H. Jenett, 2002] " ...Surface science is a well-established part of physics and chemistry, with a highly developed arsenal of experimental tools and methods..." [D.Menzel, Science 295 (2002) 58] |