187 citations · 1.9k across the 66 of their papers we have counts for
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Binding and spontaneous condensation of excitons in narrow-gap carbon nanotubes
Giacomo Sesti, Daniele Varsano, Elisa Molinari +1
Ultraclean, undoped carbon nanotubes are observed to be always insulating, even when the gap predicted by band theory is zero: the residual band gap is then thought to have a many-…
Anomalous screening in narrow-gap carbon nanotubes
Giacomo Sesti, Daniele Varsano, Elisa Molinari +1
The screening of Coulomb interaction controls many-body physics in carbon nanotubes, as it tunes the range and strength of the force that acts on charge carriers and binds electron…
A monolayer transition metal dichalcogenide as a topological excitonic insulator
Daniele Varsano, Maurizia Palummo, Elisa Molinari +1
Monolayer transition metal dichalcogenides in the T' phase promise to realize the quantum spin Hall (QSH) effect at room temperature, because they exhibit a prominent spin-orbit ga…
Interaction-driven giant orbital magnetic moments in carbon nanotubes
Joshua O. Island, Marvin Ostermann, Lee Aspitarte +5
Carbon nanotubes continue to be model systems for studies of confinement and interactions. This is particularly true in the case of so-called "ultra-clean" carbon nanotube devices…
Carbon nanotubes as excitonic insulators
Daniele Varsano, Sandro Sorella, Davide Sangalli +4
Fifty years ago Walter Kohn speculated that a zero-gap semiconductor might be unstable against the spontaneous generation of excitons---electron-hole pairs bound together by Coulom…
Giant modulation of the electronic band gap of carbon nanotubes by dielectric screening
Lee Aspitarte, Daniel R. McCulley, Andrea Bertoni +5
Carbon nanotubes (CNTs) are a promising material for high-performance electronics beyond silicon. But unlike silicon, the nature of the transport band gap in CNTs is not fully unde…