Tapia, A., G. Canto, et al. (2005). "Electronic Structure of FCC Carbon." JETP Lett. 82: 120-123.

We report first-principles calcns. of the electronic structure for carbon in the fcc structure with the exptl. obsd. lattice parameter. The calcd. orbital population shows that the chem. bond in fcc carbon is close to the s2p2 bonding with a small s-p hybridization. We find that, in contrast to graphite and diamond, fcc carbon exhibits metallic behavior with an electronic d. of states at the Fermi level of 0.5 states/(eV atom).