%0 Journal Article %A Gordillo, M.C. %A Boronat, Jordi %T Second layer of H2 and D2 adsorbed on graphene %D 2013 %@ 1098-0121 %U http://hdl.handle.net/10433/896 %X We report diffusion Monte Carlo calculations on the phase diagrams of para-H2 and ortho-D2 adsorbed on top of a first layer of the same substances on graphene. We found that the ground state of the second layer is a triangular incommensurate solid for both isotopes. The densities for promotion to a second layer and for the onset of a two-dimensional solid on that second layer compare favorably with available experimental data in both cases. %K Graphene %K Monte Carlo calculations %~