[Pw_forum] Graphene Structural Relaxation

[lfhuang]

Dear M. Pazoki:
     Your results were so strange to me, who have done some calculation on graphene with the PBE-rrkjus PP. I guess there should be something wrong in your input file. In addition to Xirainbow's comments, I want to say that Ecut=(30,300) Ry is good enough for the optimization of graphitic lattices, (35,350) may be better for some other purposes and (40,400) is great!
    You'd better supply your input file, then people can tell why your results were strange.

Best Wishes!
Yours Sincerely
L. F. Huang

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L.F.Huang(黄良锋) DFT and phonon physics
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Add: Research Laboratory for Computational Materials Sciences,
Instutue of Solid State Physics,the Chinese Academy of Sciences,
P.O.Box 1129, Hefei 230031, P.R.China
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Fax: 86-551-5591434
Our group: http://theory.issp.ac.cn
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