Figure 2

Spin-polarized band structures of VX2 monolayers without (upper panels) and with (lower panels) the on-site Coulomb energy (GGA + U) U = 2.0 eV and J = 0.87 eV for V 3d orbitals.
The blue and red lines denote the spin up and down channels, respectively. The EF (dotted horizontal line) is set at 0 eV. The GW/HSE highest valence and lowest conduction bands are denoted by green/purple star symbols in the upper/lower panels.