材料期刊网

Absorption spectra for small sulfur clusters S-n (n = 2-8) are calculated using an adiabatic time-dependent density-functional formalism within the local density approximation (LDA). We compare the calculated spectra with those calculated using the simple LDA approach. The calculated spectra exhibit a variety of features that can be used for comparison against future experimental investigations. In addition, we also obtain a significant threshold absorption, which can distinguish different ground states of the sulfur clusters.