[Wien] afm-ghost band

2008-09-03 Thread Peter Blaha
Are you sure, the compound is a real antiferromagnet ? This means you have a 2 Fe (Cu) atoms, which are chemically equivalent and have the same crystallographic site. Only when magnetism is considered, the equivalent positions split into two different ones. In the runsp calculation these two

[Wien] no effect of an external electric field on the splitting in graphene

2008-09-03 Thread Martin Gmitra
of the external electric field suitable for monoatomic slab structures including spin-orbit coupling interaction? Many thanks, Martin Gmitra -- next part -- An HTML attachment was scrubbed... URL: http://zeus.theochem.tuwien.ac.at/pipermail/wien/attachments/20080903/4928e6fb

[Wien] no effect of an external electric field on the splitting in graphene

2008-09-03 Thread Peter Blaha
Most likely this is a symmetry problem. One cannot put the graphene sheet at an arbitrary z-position. Remember, adding an E-field means that we change the Coulomb-potential. In order to keep periodicity, we use a zig-zag potential and of course it does NOT make sense to put an atom at the

[Wien] Correct way of band structure calculations for exact exchange

2008-09-03 Thread Yurko Natanzon
Dear wien2k users, Could you guide me what is the correct way of calculating band structure for exact exchange/hybrid functionals? I've tried the following: 1. x lapw1 -band -up -orb and 2. x lapw1 -band -up Of course, the results were completely different. Also, if the second variant is correct

[Wien] LDA+U calculating U for Ir

2008-09-03 Thread Pablo de la Mora
Dear Wien users, I am trying to calculate the Hubbard U for Ir using the Madsen and Novak instructions, so I have to put 7 5d electrons into the core, to I modify the case.inc files: 15 0.00 NUMBER OF ORBITALS (EXCLUDING SPIN), SHIFT ... 5,-1,2 ( N,KAPPA,OCCUP) to 17 1.00