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cond-mat.mtrl-sci2015
A simple screened exact-exchange approach for excitonic properties in solids
Zeng-hui Yang, Francesco Sottile, Carsten A. Ullrich
We present a screened exact-exchange (SXX) method for the efficient and accurate calculation of the optical properties of solids, where the screening is achieved through the zero-w…
cond-mat.mtrl-sci2010★ 27 cited
Anomalous Angular Dependence of the Dynamic Structure Factor near Bragg Reflections: Graphite
R. Hambach, C. Giorgetti, N. Hiraoka +5
The electron energy-loss function of graphite is studied for momentum transfers q beyond the first Brillouin zone. We find that near Bragg reflections the spectra can change drasti…