Dear Peiman, As far as I know, in QE the spin-orbit coupling is taken into account by fully relativistic pseudopotentials, so you have to build this kind of PP for your atoms. Once you have them, I think that the way to include the it is to set lspinorb=.true. and also noncolin=.true.
Best regards Julen Iba?ez University of the Basque Country, Condensed Matter Physics -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.democritos.it/pipermail/pw_forum/attachments/20110324/f10f7d79/attachment.htm
