M. Chamarro et al., INTERPLAY OF COULOMB, EXCHANGE, AND SPIN-ORBIT EFFECTS IN SEMICONDUCTOR NANOCRYSTALLITES, Physical review. B, Condensed matter, 57(7), 1998, pp. 3729-3732
Size-selective spectroscopic techniques and a tight-binding calculatio
n with restricted configuration interaction have been used to study th
e relative effects of Coulomb, exchange, and spin-orbit coupling terms
on the size dependence of the lowest optical transitions in CdS nanoc
rystallites. Quantitative agreement is obtained for the magnitude of t
he corresponding dominant transitions. The nature of the states is ana
lyzed on the basis of a simple model. A brief comparison to other semi
conductor nanocrystallites like CdSe is finally presented. [S0163-1829
(98)02604-6].