Fig. 1
From: Competing Coulomb and electron–phonon interactions in NbS2

Relevant energies in monolayer NbS2. a Band structure. The metallic half-filled band of band width 1.2 eV is colored in red. b We characterize the electronic properties of NbS2 by the competition between kinetic energy t, local electronic repulsion U, long-range Coulomb interaction V, and on-site electron–phonon interaction λ. For the kinetic energy and the long-range Coulomb interaction, only the nearest-neighbor terms are visualized, whereas all terms are taken into account in the numerical simulations