HGH pseudopotential with GGA method??

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new_986
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HGH pseudopotential with GGA method??

Post by new_986 » Thu Mar 03, 2011 10:02 am

Hi everyone...
is it allow to use HGH psudopotential with GGA Method??
thanks

Nawzad A.

david.waroquiers
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Re: HGH pseudopotential with GGA method??

Post by david.waroquiers » Thu Mar 03, 2011 11:20 am

Hello,

You have only a few elements for which HGH pseudopotentials are available for GGA on the abinit website (hydrogen, carbon and oxygen) and to be consistent, you should always use pseudopotentials made with the same exchange correlation i.e. do not use an HGH pseudo LDA with ixc 11 for example and reverse.

David

mverstra
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Re: HGH pseudopotential with GGA method??

Post by mverstra » Thu Mar 03, 2011 12:14 pm

No no, it's much better than this - the whole GGA periodic table was generated by Matthias Krack:

http://cvs.berlios.de/cgi-bin/viewvc.cg ... er/abinit/

these pseudopotentials use the gth/hgh form, and most have an abinit-compatible version.

Matthieu
Matthieu Verstraete
University of Liege, Belgium

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new_986
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Re: HGH pseudopotential with GGA method??

Post by new_986 » Fri Mar 04, 2011 8:39 am

david.waroquiers wrote:Hello,

You have only a few elements for which HGH pseudopotentials are available for GGA on the abinit website (hydrogen, carbon and oxygen) and to be consistent, you should always use pseudopotentials made with the same exchange correlation i.e. do not use an HGH pseudo LDA with ixc 11 for example and reverse.

David

Hi...
thats what i wanted to know (HGH with ixc 11) because when i do that it works well and gives good results ...
I have another question please.. why pspnc ( Troullier-Martins ) pseudo. doest not gives good results?.. for example when i want calculate band gap energy for ZnS using pspnc pseudo.
thank u

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new_986
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Re: HGH pseudopotential with GGA method??

Post by new_986 » Fri Mar 04, 2011 8:45 am

mverstra wrote:No no, it's much better than this - the whole GGA periodic table was generated by Matthias Krack:

http://cvs.berlios.de/cgi-bin/viewvc.cg ... er/abinit/

these pseudopotentials use the gth/hgh form, and most have an abinit-compatible version.

Matthieu

I already used these pseudo. but it doesn't work I don't know why?!!
Thank you very much

mverstra
Posts: 655
Joined: Wed Aug 19, 2009 12:01 pm

Re: HGH pseudopotential with GGA method??

Post by mverstra » Sun Mar 13, 2011 10:17 pm

need to be more precise...
Matthieu Verstraete
University of Liege, Belgium

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new_986
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Re: HGH pseudopotential with GGA method??

Post by new_986 » Wed Mar 16, 2011 10:43 am

mverstra wrote:need to be more precise...

I mean the link what you gave me contains pseudopotential file with pspcode equal to 10 but in abinit should be between 1 to 8

Nawzad A.

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