Possible stably-ordered substitutional structures based on a graphene-type crystal lattice are considered. A kinetic model of atomic ordering in metal-doped graphene with stoichiometric (1/8, 1/4, 1/2) and nonstoichiometric compositions is developed. Inasmuch as the intrasublattice and intersublattice 'interchange' ('mixing') energies are competitively different for graphene-based lattice, kinetic curves of the long-range order (LRO) parameters may be nonmonotonic for the structures described by two or three LRO parameters.
@article{arxiv.1406.0630,
title = {Kinetics of atomic ordering in metal-doped graphene},
author = {T. M. Radchenko and V. A. Tatarenko},
journal= {arXiv preprint arXiv:1406.0630},
year = {2014}
}