orex / supercell

The program allows you to create regular structure supercell from cif file with partial occupancy and/or substitutions.
GNU General Public License v2.0
91 stars 56 forks source link

Fail to generate supercell model by SUPERCELL #39

Closed cugmsn closed 3 years ago

cugmsn commented 3 years ago

We are trying to generate supercell model of Fe doped alumina-rich spinel (MgO·1.8Al2O3) by using Supercell program, but failed.

We don't know what does it means. Could you give us some suggestion?

orex commented 3 years ago

Hello.

Thank you for the request. This is input file problem, not supercell. Please check the screenshot below. Screenshot from 2021-07-09 16-22-56

On the left panel you can see the file you attached, on the right panel the same file from COD (9007271.cif). Please check line 273 last two values. It looks like the value 0.87500.00726 should look like this 0.8750 0.00726 (space added). I can assume that the problem appeared, when you manually changed the occupancy. I suggest you verify the cif file with the publication and check it with tools like EnCiFer. Unfortunately, my program doesn't have a strong "cif verification engine". It relays on validity of the input cif files. Another suggestion is to use a command line interface of supercell to change occupancy of different sites. You can get more information about this in the manual and the tutorial.

cugmsn commented 3 years ago

Thanks