Re: [Wien] Huge volume variation in volume optimization

2014-04-06 Thread Peter Blaha
I am trying to work on volume optimization of a doped material, CdSiAsBi. No, you are NOT studying a doped material, you study an artificially ordered CdSiAsBi compound. 50% doping is not a doping. And: yes, Bi is much larger than As, so most likely a large volume is ok. And: Your E-vol

[Wien] Huge volume variation in volume optimization

2014-04-05 Thread Ushma Ahuja
Dear Wien2k users, I am trying to work on volume optimization of a doped material, CdSiAsBi. The base material was CdSiAs2 and then it was doped with a bismuth atom (in a 1x1x1 supercell). The structure thus changes from tetragonal body centred (CdSiAs2) to orthorhombic body centred