3 papers
cond-mat.mes-hall2023
Robust high-temperature topological excitonic insulator of transition-metal carbides (MXenes)
Shan Dong, Yuanchang Li
Topological excitonic insulators combine topological edge states and spontaneous exciton condensation, with dual functionality of topological insulators and excitonic insulators. Y…
cond-mat.mtrl-sci2021
Excitonic Instability and Electronic Property of Two-dimensional AlSb Limit
Shan Dong, Yuanchang Li
Motivated by the recent synthesis of two-dimensional monolayer AlSb, we theoretically investigate its ground state and electronic properties using the first-principles calculations…
cond-mat.mtrl-sci2020
Transition from band insulator to excitonic insulator via alloying Se into Monolayer TiS: A Computational Study
Shan Dong, Yuanchang Li
First-principles density functional theory plus Bethe-Salpeter equation calculations are employed to investigate the electronic and excitonic properties of monolayer titanium trich…