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Evidence for equilibrium excitons and exciton condensation in monolayer WTe2
Bosong Sun, Wenjin Zhao, Tauno Palomaki +14
A single monolayer of the layered semimetal WTe2 behaves as a two-dimensional topological insulator, with helical conducting edge modes surrounding a bulk state that becomes insula…
First-Principles Calculations of Exciton Radiative Lifetimes in Monolayer Graphitic Carbon Nitride Nanosheets: Implications for Photocatalysis
Michele Re Fiorentin, Francesca Risplendi, Maurizia Palummo +1
In this work, we report on the exciton radiative lifetimes of graphitic carbon nitride monolayers in the triazine- (gCN-t) and heptazine-based (gCN-h) forms, as obt…
Spinorial formulation of the GW-BSE equations and spin properties of excitons in 2D Transition Metal Dichalcogenides
Margherita Marsili, Alejandro Molina-Sánchez, Maurizia Palummo +2
In many paradigmatic materials, like Transition Metal Dichalcogenides, the role played by the spin degrees of freedom is as important as the one played by the electron-electron int…
Spatially indirect excitons in black and blue phosphorene double layers
Michele Re Fiorentin, Giancarlo Cicero, Maurizia Palummo
Monolayer black and blue phosphorenes possess electronic and optical properties that result in unique features when the two materials are stacked. We devise a low-strain van-der-Wa…