Fig. 6: Effect of finite thickness and asymmetry on electronic dispersions.
From: Electronic properties of stacking faults in Bernal graphite

Shown are the band structures for undoped 11-layer systems with an ABC stacking fault positioned at varying depths, calculated with self-consistent on-layer potentials. The energy scale spans 40 meV from top to bottom. A gap emerges at the Dirac points due to the loss of inversion symmetry.