Theory of Color Centers. IV. Energy Levels of Various Complex Centers

Abstract

Several complex centers consisting of two or more negative and positive ion vacancies with one or two electrons trapped there are treated by an approximate method of taking for the electronic wave function a linear combination of the valence wave functions of the positive ions which surround the vacancies. The resonance integral between two neighboring positive ions is determined in the case of F-center by comparing theory with experiment and then it is used for other centers. Rough estimate of the dissociation energy of each center is also given.