Stimulated by a number of potential applications, growth of fluorite (CaF2) on Si 111 has been extensively studied. Only a few attempts have been undertaken, however, to investigate the initial stages of CaF2 growth on a technologically important Si OO1 surface, where anisotropic CaF2 growth accompanied by the formation of the quasi one-dimensional islands was observed using TEM and STM techniques. Such islands with nanometer scale width could be attractive ...