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cond-mat.mes-hall2025
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-…
cond-mat.mes-hall2022
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…