Theoretical survey ofFcenters in alkali halides with NaCl structure. I. Absorption and the ground state

Abstract

The absorption energy and ground state are analyzed for the $F$ center in 16 alkali halides, using a point-ion lattice with ion-size correction, and including lattice distortion. $F$-center localization and point-ion model energies ignoring ion size and lattice distortion depend on nearest-neighbor distances qualitatively as one would expect.