Titlebook: Self-Trapped Excitons; K. S. Song,Richard T. Williams Book 19931st edition Springer-Verlag Berlin Heidelberg 1993 Absorption.Atom.Diffusio

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Condensed Rare Gases,sruption of the rare-gas-like structure led to local collapse of the lattice, identified with self-trapping of the valence excitation. It seems only natural, therefore, that we begin detailed consideration of self-trapped excitons with the solid rare gases.

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RACE

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Alkaline Earth Fluorides,F. and the cubic fluorite structure for CaF., SrF., and BaF.. Except for the much larger cohesive energy of ionic bonding, these materials are not so different from the rare-gas solids discussed in the last chapter.

Metamorphosis

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Introduction,insulators, and organic molecular crystals. Evidence of self-trapping can be seen in some of the examples of emission spectra. Fundamental concepts of exciton theory in a rigid crystal lattice will be summarized briefly, with reference to original works and reviews for details. Then, the rigidity of

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Choreography

Condensed Rare Gases,arely interacting closed shell atoms, held together only by Van der Waals attraction. Already in introducing the atomistic structure of self-trapped holes and excitons in alkali halides, we have invoked the paradigm of rare gases, describing the alkali halide ground state ions as “rare-gas-like.” Di

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