HSE hybrid functional in Abinit
Posted: Wed Mar 25, 2015 3:00 pm
Hey there,
I'm trying to use the HSE functional (ixc = -524) for a ground state lattice parameter calculation of Si. I've done convergence tests on my ecut, k-points, and pawecutdg, however I'm getting a lattice parameter of 5.7 Angs, and I can tell the calculations are far too quick. Is there something here I'm not seeing, is it even possible to do a hybrid + paw calculation in abinit? Is there another way I should be going about this? Apologies for the naivety, any help is much appreciated!
I'm trying to use the HSE functional (ixc = -524) for a ground state lattice parameter calculation of Si. I've done convergence tests on my ecut, k-points, and pawecutdg, however I'm getting a lattice parameter of 5.7 Angs, and I can tell the calculations are far too quick. Is there something here I'm not seeing, is it even possible to do a hybrid + paw calculation in abinit? Is there another way I should be going about this? Apologies for the naivety, any help is much appreciated!