Av. Puchina et al., AB-INITIO STUDY OF THE F-CENTERS IN CAF2 - CALCULATIONS OF THE OPTICAL-ABSORPTION, DIFFUSION AND BINDING-ENERGIES, Solid state communications, 106(5), 1998, pp. 285-288
The ground electronic state of the F center in CaF2 crystal, its optic
al absorption energy, the activation energy of thermal diffusion and M
center dissociation to pair of F centers are calculated using the Har
tree-Fock embedded molecular cluster method. Different pseudopotential
s, basis sets, boundary conditions and two computer codes, EMBED96 and
Gaussian94, are employed and their results compared. (C) 1998 Elsevie
r Science Ltd. All rights reserved.