  A disorder-order transition from amorphous carbon (aC) to layered amorphous
graphene (LAG) has been predicted using ab-initio methods. Amorphous carbon at
densities close to the graphitic density show a strong proclivity to layer in
NVT simulations near 3000K . Our calculations have shown that graphitization is
strongly dependent on the simulation temperature and is not observed under
2500K. The origin of such a disorder-order transition has been studied using
various structural analyses. Each layer of LAG is a layer of amorphous graphene
(aG) including pentagons and heptagons in addition to hexagons and the planes
are separated by about 3.2A. LAG obtained from the NVT simulations were highly
stable. The electronic charge density, especially for the pi and pi$^*$ states,
was computed with the Hyed-Scuseria-Ernzerhof (HSE) hybrid functional and
compared with crystalline graphite (cG). The impact of structural disorder has
been studied in detail, especially the consequences of disorder to electronic
transport.
