407 citations · 2.7k across the 50 of their papers we have counts for
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Fingerprints of Excitonic Collective Modes in the Two-Dimensional Electron Gas
Jakob Wolff, Silvana Botti, Lucia Reining +1
The two-dimensional homogeneous electron gas (2D HEG) is a prototype system of fundamental interest that can be realized experimentally over a wide range of densities. Here, we inv…
Accurate electronic band gaps of two-dimensional materials from the local modified Becke-Johnson potential
Tomáš Rauch, Miguel A. L. Marques, Silvana Botti
The electronic band structures of two-dimensional materials are significantly different from those of their bulk counterparts, due to quantum confinement and strong modifications o…
Direct Bandgap Emission from Hexagonal Ge and SiGe Alloys
E. M. T. Fadaly, A. Dijkstra, J. R. Suckert +16
Silicon crystallized in the usual cubic (diamond) lattice structure has dominated the electronics industry for more than half a century. However, cubic silicon (Si), germanium (Ge)…
Local modified Becke-Johnson exchange-correlation potential for interfaces, surfaces, and two-dimensional materials
Tomáš Rauch, Miguel A. L. Marques, Silvana Botti
The modified Becke-Johnson meta-GGA potential of density functional theory has been shown to be the best exchange-correlation potential to determine band gaps of crystalline solids…
Excitonic effects in the optical properties of CdSe nanowires
J. G. Vilhena, S. Botti, M. A. L. Marques
Using a first-principle approach beyond density functional theory we calculate the electronic and optical properties of small diameter CdSe nanowires.Our results demonstrate how so…