88 citations · 363 across the 22 of their papers we have counts for
4 papers · 1 filter
Optical properties of hydrogenated graphene superlattices
Vasil A. Saroka, Olivia Pulci, Marco D'Alessandro
We investigate with first principles theoretical methods optical response accounting for excitonic effects of quasi-one dimensional monolithic arrays of graphene nanostripes -- two…
Entropy Signatures of Topological Phase Transitions
Y. M. Galperin, D. Grassano, V. P. Gusynin +5
We review the behavior of the entropy per particle in various two-dimensional electronic systems. The entropy per particle is an important characteristic of any many body system th…
Detection of topological phase transitions through entropy measurements: the case of germanene
D. Grassano, O. Pulci, V. O. Shubnyi +4
We propose a characterization tool for studies of the band structure of new materials promising for the observation of topological phase transitions. We show that a specific resona…
Local-field effects in silicon nanoclusters
Roberto Guerra, Margherita Marsili, Olivia Pulci +1
The effect of the local fields on the absorption spectra of silicon nanoclusters (NCs), freestanding or embedded in SiO2, is investigated in the DFT-RPA framework for different siz…