[Wien] creating a supercell

Laurence Marks L-marks at northwestern.edu
Fri Oct 19 22:52:42 CEST 2018


I will recommend https://doi.org/10.1016/j.surfrep.2018.08.001 . For oxides
it is not so easy!

On Fri, Oct 19, 2018 at 3:36 PM shaymlal dayananda <kcsdayananda at yahoo.com>
wrote:

> Dear Prof. L. Marks
>
> Thank you very much for quick response.
>
> This is a (semiconductor) oxide. Can you please let me know the correct
> way I have to follow to create this structure with vaccuum,? any code, etc.?
>
> My target is calculating the "work function".
>
> Thank you in advance
>
> Daya
>
>
>
> On Friday, October 19, 2018 2:25 PM, Laurence Marks <
> L-marks at northwestern.edu> wrote:
>
>
> Is this a metal, single element compound or an oxide (insulator)? If it is
> a compound probably none of the methods is right. Otherwise all are equally
> right or wrong. (30 bohr seems to be anomalously large.)
>
> On Fri, Oct 19, 2018 at 3:22 PM shaymlal dayananda <kcsdayananda at yahoo.com>
> wrote:
>
> Dear developers and users
>
>
> I need to generate a supercell for a CYZ structure for workfunction
> calculation with WIEN2k 18.2.
> However "supercell" program in Wien2k does not support this group. Hence I
> found two other methods to create the supercell.
>
> one method is VESTA. My structure has a=4.12 ,b= 11.9, c=6.32 (Angstrom)
> with orthorhombic structure.Thus I thought to create a supercell of the
> size 1x3x1 and then to add 30 bohr vacuum to the y-axis direction.
>
> In the second method, by using METADISE code, I can create a surface along
> 010 and then the supercell based on that and add the vacuum.
>
> I felt that VESTA method is easy to do. But I am bit hesitated if I am has
> a wrong structure with VESTA (missing symmetry or anything).
>
> Can someone please let me know, if you know, which is the correct way? or
> what is wrong with VESTA method?
>
> I am waiting for your answer to continue my calculation
>
> Thank you for your valuable comments
>
> Daya
>
>
>
>
> --
> Professor Laurence Marks
> "Research is to see what everybody else has seen, and to think what nobody
> else has thought", Albert Szent-Gyorgi
> www.numis.northwestern.edu ; Corrosion in 4D:
> MURI4D.numis.northwestern.edu <http://muri4d.numis.northwestern.edu/>
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-- 
Professor Laurence Marks
"Research is to see what everybody else has seen, and to think what nobody
else has thought", Albert Szent-Gyorgi
www.numis.northwestern.edu ; Corrosion in 4D: MURI4D.numis.northwestern.edu
Partner of the CFW 100% program for gender equity, www.cfw.org/100-percent
Co-Editor, Acta Cryst A
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