Hi Nick,


kind reply. I'm working at an Institut for experimental physics. My Prof is not 
an expert for simulation methods.

My direct supervisor is meanwhile not working for the institute anymore and by 
the way nobody around me has ever worked with a DFT-programm

using atomic like orbitals, there just some semi-experts for pw-codes.

That's why I try to ask the real experts in this Forum to help me



Best Regards

Stephan



-----Original message-----
From: Nick Papior Andersen <[email protected]>
Sent: Wednesday 10th June 2015 16:36
To: [email protected]
Subject: Re: [SIESTA-L] PAO-basis block for As

I would suggest you ask your supervisor/professor (I suspect you have one?).

2015-06-10 16:24 GMT+02:00 Ludwig, Stephan 
<[email protected] 
<mailto:[email protected]> >:
 

Hello everybody,



I'm an absolute beginner in DFT calculations (I'm a Master student) and now I 
have to cope with a material containing Arsenid.

The pseudopotential of As in the database has a semicore state so I have to 
implement the PAO-basis block in the fdf-file.



I have no idea how to choose the parameters of this block to obtain reasonable 
results.

I was able to start siesta by using a PAO-basis block which was originally 
designed for iron:



%block PAO.Basis                     # Define Basis set
As 1                                          # Species label, number of 
l-shells
 n=3 2 2                                     # n, l, Nzeta
 6.000 0.000
 1.000 1.000
%endblock PAO.Basis







Can anybody please deliver a suitable PAO-basis and a pseudopotential for As.

Or can anybody help me to find a suitable PAO-basis for the pseudopotential I 
use. You can find it in the attachment

It would be a great help and I would learn a lot through it 



Thanks and regards



Stephan Ludwig








-- 
Kind regards Nick

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