The interaction of atoms and molecules with solid surfaces IX—The emission and absorption of energy by a solid

Abstract

As in the earlier papers of this series, the interaction of an adsorbed atom and a surface atom of a crystal is represented by a potential field of the type suggested by Morse. | Only motion in the direction perpendicular to the surface of the crystal is considered. So far, however, the approximation which was used limited the possible energy changes of the solid to those in which only one quantum of energy was absorbed or emitted in any transition. The following discussion shows the effect of many-quantum transitions and extends the field of application of the earlier papers.