PAW for KCrF3

External optional components of Abinit (BigDFT, Wannier90...) and codes using/providing data from/to Abinit (AtomPAW, ONCVPSP, EXC, DP, Yambo...)

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CarmineAutieri
Posts: 13
Joined: Wed Feb 24, 2010 11:36 am
Location: Uppsala University

PAW for KCrF3

Post by CarmineAutieri » Fri Feb 11, 2011 3:13 pm

Hello everybody,

I am studying KCrF3 using LSDA+PAW.
I had good results and now want to use LDA+U, but the basis set is not complete.
The Density of state PW is very very different form the Density of state of the PS for all the atoms.
How can I do to solve this problem?
Can I start from actual PAW dataset to generate a new PAW dataset with more complete basis set?
is the problem easily solvable in this way? or I must do a lot's of test for the new PAW dataset?

Thanks in advance
Carmine

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jzwanzig
Posts: 504
Joined: Mon Aug 17, 2009 9:25 am

Re: PAW for KCrF3

Post by jzwanzig » Mon Feb 14, 2011 9:50 pm

If you need to make a PAW set with more basis functions you need to start from the input files, not from the current PAW output files. All the PAW sets distributed on the web site include the input files they are made from so it is not too hard to start modifying the input and making new input. But, for sure you will need to carefully test the output. Unfortunately things can go wrong when adding additional states.
Josef W. Zwanziger
Professor, Department of Chemistry
Canada Research Chair in NMR Studies of Materials
Dalhousie University
Halifax, NS B3H 4J3 Canada
jzwanzig@gmail.com

mina
Posts: 110
Joined: Mon Sep 27, 2010 8:44 am

Re: PAW for KCrF3

Post by mina » Wed Feb 23, 2011 9:17 am

Hello carmineAutieri,
i wana to work by LSDA approximation in abinit but i can't find any tutorial about it.
could you please guide me about how to use LSDA by abinit?
Best wishes.

CarmineAutieri
Posts: 13
Joined: Wed Feb 24, 2010 11:36 am
Location: Uppsala University

Re: PAW for KCrF3

Post by CarmineAutieri » Mon Feb 28, 2011 4:09 pm

Thanks Prof. Zwanziger

Best
Carmine

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