[Wien] plz help required
arqum hashmi
arqumhashmi at yahoo.com
Mon Apr 2 04:44:24 CEST 2012
Dear wien2k users
please help me to solve out lda+u problem. i attached my struct file and send this mail to wien list but it is being held due to moderator and now i am waiting for approval.
because i am really in problem and not able to solve it. i will be very grateful to you.
Thanks and Regards
Arqum Hashmi
________________________________
From: Laurence Marks <L-marks at northwestern.edu>
To: A Mailing list for WIEN2k users <wien at zeus.theochem.tuwien.ac.at>
Sent: Wednesday, March 28, 2012 5:16 PM
Subject: Re: [Wien] plz help required
Send to the Wien list
2012/3/28 arqum hashmi <arqumhashmi at yahoo.com>:
> Dear Sir Laurence Marks,
>
> thanks a lot for your time.
>
> sir i send attached struct file to wien mailing address or to your email
> address. sir i am confused because if structure file has some problem then
> how scf cycle complete firstly without any error but it gives error when i
> take into account LDA+U.
>
> i am very thankful to you.
>
> Best Regards
> Arqum Hashmi
>
> ________________________________
> From: Laurence Marks <L-marks at northwestern.edu>
> To: A Mailing list for WIEN2k users <wien at zeus.theochem.tuwien.ac.at>
> Sent: Wednesday, March 28, 2012 5:02 AM
>
> Subject: Re: [Wien] plz help required
>
> Most surfaces (particularly oxides) have relatively high symmetry.
> And, just because you used software to create the surface does not
> make it right.
>
> Attach the structure file (please attach rather than include it); 99%
> it has physical errors.
>
> 2012/3/28 arqum hashmi <arqumhashmi at yahoo.com>:
>> Dear Laurence Marks,
>>
>> one thing is this that it is the surface thin film calculation not the
>> bulk.
>> that's why it is not physically incorrect. i told you in last mail i used
>> one software for creating this structure and also untill scf cycle is
>> converged. but when i take into account LDA+U then it gives that problem.
>>
>> Best Regards
>>
>> ________________________________
>> From: Laurence Marks <L-marks at northwestern.edu>
>> To: A Mailing list for WIEN2k users <wien at zeus.theochem.tuwien.ac.at>
>> Sent: Tuesday, March 27, 2012 9:36 PM
>> Subject: Re: [Wien] plz help required
>>
>> I doubt that a structure with 50 unique atoms is physically correct,
>> and by reducing the symmetry you are making your problem much, much
>> harder than it should be. Fe2O3 is a high-symmetry structure, and if
>> you have correctly used full precision when creating the structure
>> (i.e. 0.33333333 not 0.33330000 for fractional positions) WIen2k will
>> recognize this and simplify if you do the recommended initialization.
>> This will be faster, more accurate and simpler.
>>
>> Have you used a viewer (e.g. Xcrygen, Atoms, or "x struct2cif" then a
>> cif viewer) to look at it?
>>
>> 2012/3/28 arqum hashmi <arqumhashmi at yahoo.com>:
>>> Dear wien2k users,
>>> I am trying to do a LDA+U calculation on a Fe2O3 with 50 atoms per unit
>>> cell. My struct file shows that all 50 atoms are non-equivalent.I had run
>>> SCF cycles separately with only spin polarized option and then take into
>>> account LDA+U only for Fe atoms which are 20 atoms (index in struct file
>>> 31 -50).
>>>
>>> i prepared my case.inorb and case.indmc like this
>>> case.indmc
>>> -9. Emin cutoff energy
>>> 20 number of atoms for which density matrix is
>>> calculated
>>> 31 1 2 index of 1st atom, number of L's, L1
>>> 32 1 2 dtto for 2nd atom, repeat NATOM times
>>> 33 1 2
>>> 34 1 2
>>> 35 1 2
>>> 36 1 2
>>> 37 1 2
>>> 38 1 2
>>> 39 1 2
>>> 40 1 2
>>> 41 1 2
>>> 42 1 2
>>> 43 1 2
>>> 44 1 2
>>> 45 1 2
>>> 46 1 2
>>> 47 1 2
>>> 48 1 2
>>> 49 1 2
>>> 50 1 2
>>> 0 0 r-index, (l,s)index
>>>
>>> case .inorb
>>>
>>> 1 20 0 nmod, natorb, ipr
>>> PRATT 1.0 BROYD/PRATT, mixing
>>> 31 1 2 iatom nlorb, lorb
>>> 32 1 2 iatom nlorb, lorb
>>> 33 1 2 iatom nlorb, lorb
>>> 34 1 2 iatom nlorb, lorb
>>> 35 1 2 iatom nlorb, lorb
>>> 36 1 2 iatom nlorb, lorb
>>> 37 1 2 iatom nlorb, lorb
>>> 38 1 2 iatom nlorb, lorb
>>> 39 1 2 iatom nlorb, lorb
>>> 40 1 2 iatom nlorb, lorb
>>> 41 1 2 iatom nlorb, lorb
>>> 42 1 2 iatom nlorb, lorb
>>> 43 1 2 iatom nlorb, lorb
>>> 44 1 2 iatom nlorb, lorb
>>> 45 1 2 iatom nlorb, lorb
>>> 46 1 2 iatom nlorb, lorb
>>> 47 1 2 iatom nlorb, lorb
>>> 48 1 2 iatom nlorb, lorb
>>> 49 1 2 iatom nlorb, lorb
>>> 50 1 2 iatom nlorb, lorb
>>> 0 nsic 0..AFM, 1..SIC, 2..HFM
>>> 0.29 0.00 U J (Ry) Note: we recommend to use U_eff = U-J and
>>> J=0
>>> 0.29 0.00 U J
>>> 0.29 0.00 U J
>>> 0.29 0.00 U J
>>> 0.29 0.00 U J
>>> 0.29 0.00 U J
>>> 0.29 0.00 U J
>>> 0.29 0.00 U J
>>> 0.29 0.00 U J
>>> 0.29 0.00 U J
>>> 0.29 0.00 U J
>>> 0.29 0.00 U J
>>> 0.29 0.00 U J
>>> 0.29 0.00 U J
>>> 0.29 0.00 U J
>>> 0.29 0.00 U J
>>> 0.29 0.00 U J
>>> 0.29 0.00 U J
>>> 0.29 0.00 U J
>>> 0.29 0.00 U J
>>>
>>> but when i run scf cycle with LDA+U it stops and when i checked
>>> case.outputorbup file it gives this error.
>>>
>>> Calculation of orbital potential for spin block: up
>>> Type of potential: LDA+U
>>> Vorb applied to atom 31 orbit. numbers 2
>>> Vorb applied to atom 32 orbit. numbers 2
>>> Vorb applied to atom 33 orbit. numbers 2
>>> Vorb applied to atom 34 orbit. numbers 2
>>> Vorb applied to atom 35 orbit. numbers 2
>>> Vorb applied to atom 36 orbit. numbers 2
>>> Vorb applied to atom 37 orbit. numbers 2
>>> Vorb applied to atom 38 orbit. numbers 2
>>> Vorb applied to atom 39 orbit. numbers 2
>>> Vorb applied to atom 40 orbit. numbers 2
>>> Vorb applied to atom 41 orbit. numbers 2
>>> Vorb applied to atom 42 orbit. numbers 2
>>> Vorb applied to atom 43 orbit. numbers 2
>>> Vorb applied to atom 44 orbit. numbers 2
>>> Vorb applied to atom 45 orbit. numbers 2
>>> Vorb applied to atom 46 orbit. numbers 2
>>> Vorb applied to atom 47 orbit. numbers 2
>>> Vorb applied to atom 48 orbit. numbers 2
>>> Vorb applied to atom 49 orbit. numbers 2
>>> Vorb applied to atom 50 orbit. numbers 2
>>> Around the mean field method
>>> Atom 31 L= 2 U= 0.290 J= 0.000 Ry
>>> Atom 32 L= 2 U= 0.290 J= 0.000 Ry
>>> Atom 33 L= 2 U= 0.290 J= 0.000 Ry
>>> Atom 34 L= 2 U= 0.290 J= 0.000 Ry
>>> Atom 35 L= 2 U= 0.290 J= 0.000 Ry
>>> Atom 36 L= 2 U= 0.290 J= 0.000 Ry
>>> Atom 37 L= 2 U= 0.290 J= 0.000 Ry
>>> Atom 38 L= 2 U= 0.290 J= 0.000 Ry
>>> Atom 39 L= 2 U= 0.290 J= 0.000 Ry
>>> Atom 40 L= 2 U= 0.290 J= 0.000 Ry
>>> Atom 41 L= 2 U= 0.290 J= 0.000 Ry
>>> Atom 42 L= 2 U= 0.290 J= 0.000 Ry
>>> Atom 43 L= 2 U= 0.290 J= 0.000 Ry
>>> Atom 44 L= 2 U= 0.290 J= 0.000 Ry
>>> Atom 45 L= 2 U= 0.290 J= 0.000 Ry
>>> Atom 46 L= 2 U= 0.290 J= 0.000 Ry
>>> Atom 47 L= 2 U= 0.290 J= 0.000 Ry
>>> Atom 48 L= 2 U= 0.290 J= 0.000 Ry
>>> Atom 49 L= 2 U= 0.290 J= 0.000 Ry
>>> Atom 50 L= 2 U= 0.290 J= 0.000 Ry
>>> end of OP input
>>> STRUCT file read
>>> VSP read
>>> Conflict in atom indexes: iatom 31 ne jatom 1
>>>
>>>
>>> i don't know how to solve this, please guide me about this. i am really
>>> unable to solve this.
>>>
>>> i will be very grateful to you.
>>>
>>> Best Regards
>>>
>>> Arqum Hashmi
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Wien mailing list
>>> Wien at zeus.theochem.tuwien.ac.at
>>> http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien
>>>
>>
>>
>>
>> --
>> Professor Laurence Marks
>> Department of Materials Science and Engineering
>> Northwestern University
>> www.numis.northwestern.edu 1-847-491-3996
>> "Research is to see what everybody else has seen, and to think what
>> nobody else has thought"
>> Albert Szent-Gyorgi
>> _______________________________________________
>> Wien mailing list
>> Wien at zeus.theochem.tuwien.ac.at
>> http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien
>>
>>
>>
>> _______________________________________________
>> Wien mailing list
>> Wien at zeus.theochem.tuwien.ac.at
>> http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien
>>
>
>
>
> --
> Professor Laurence Marks
> Department of Materials Science and Engineering
> Northwestern University
> www.numis.northwestern.edu 1-847-491-3996
> "Research is to see what everybody else has seen, and to think what
> nobody else has thought"
> Albert Szent-Gyorgi
> _______________________________________________
> Wien mailing list
> Wien at zeus.theochem.tuwien.ac.at
> http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien
>
>
>
> _______________________________________________
> Wien mailing list
> Wien at zeus.theochem.tuwien.ac.at
> http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien
>
--
Professor Laurence Marks
Department of Materials Science and Engineering
Northwestern University
www.numis.northwestern.edu 1-847-491-3996
"Research is to see what everybody else has seen, and to think what
nobody else has thought"
Albert Szent-Gyorgi
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