[Wien] A small query

Dr. K. C. Bhamu kcbhamu85 at gmail.com
Tue May 24 14:32:27 CEST 2016


Thank you Dr Tran.
Kind regards
Bhamu


------------------------------------------------
Dr. K. C. Bhamu
(UGC-Dr. D. S. Kothari Postdoc Fellow)
Department of Physics
Goa University, Goa-403 206
India
Mob. No.  +91-9975238952

On Tue, May 24, 2016 at 5:48 PM, <tran at theochem.tuwien.ac.at> wrote:

> It's ok since it does not matter at all for the mBJ calculation where
> the files lda.* are located.
> It's only important to use save_lapw after the LDA calculation
> to avoid to mix the LDA and mBJ results in the same scf file.
>
>
> On Tuesday 2016-05-24 14:04, Dr. K. C. Bhamu wrote:
>
> Date: Tue, 24 May 2016 14:04:28
>> From: Dr. K. C. Bhamu <kcbhamu85 at gmail.com>
>> Reply-To: A Mailing list for WIEN2k users <
>> wien at zeus.theochem.tuwien.ac.at>
>> To: A Mailing list for WIEN2k users <wien at zeus.theochem.tuwien.ac.at>
>> Subject: Re: [Wien] A small query
>>
>> Dear Dr. Tran
>> In addition to this query, my mail is just for your confirmation whether I
>> did correct or not.
>> I optimized atomic positions using lda. Then did "save_lapw -d lda"
>> and run mbj as suggested in UG.
>> I did not keep lda.scf for mBJ calculation and ran with "run_lapw -p"
>>
>> Does it correct or should I keep lda.scf in pwd for mBJ?
>>
>> Kind regards
>> Bhamu
>>
>>
>> On Tue, May 24, 2016 at 5:27 PM, <tran at theochem.tuwien.ac.at> wrote:
>>      This warning concerns the forces which are used for the
>>      optimization of
>>      the position of atoms. So, I guess that you are optimizing the
>>      position
>>      of atoms, which should not be (and can not be) done with mBJ
>>      since mBJ
>>      is only a potential (no associated energy) that should be used
>>      only for
>>      band structure. Run a mBJ calculation only at a fixed geometry
>>      (GGA or experimental, etc.).
>>
>>      F. Tran
>>
>>      On Tuesday 2016-05-24 13:42, Yedu Kondalu wrote:
>>
>>            Date: Tue, 24 May 2016 13:42:57
>>            From: Yedu Kondalu <nykondalu at gmail.com>
>>            Reply-To: A Mailing list for WIEN2k users
>>            <wien at zeus.theochem.tuwien.ac.at>
>>            To: wien at zeus.theochem.tuwien.ac.at
>>            Subject: Re: [Wien] Warnings in TB-mBJ calculation
>>            but not in (LDA/GGA)
>>               calculation
>>
>>            Dear sir,
>>
>>               Here are the warning in the SCF file while
>>            running TB-mBJ calculation.
>>
>>            grep -e :WARN *.scf
>>
>>            :WARN  FCORE for atom   1 not converged at RMT.
>>            Estimated inaccuracy:  0.1184 mRy/bohr
>>            :WARN  FCORE for atom   2 not converged at RMT.
>>            Estimated inaccuracy:  0.3456 mRy/bohr
>>            :WARN  FCORE for atom   3 not converged at RMT.
>>            Estimated inaccuracy:  0.2879 mRy/bohr
>>            :WARN  FCORE for atom   4 not converged at RMT.
>>            Estimated inaccuracy:  0.1170 mRy/bohr
>>            :WARN  FCORE for atom   5 not converged at RMT.
>>            Estimated inaccuracy:  0.2888 mRy/bohr
>>            :WARN  FCORE for atom   6 not converged at RMT.
>>            Estimated inaccuracy:  0.3401 mRy/bohr
>>
>>
>>            grep :ENE *.scf
>>
>>            :ENE  : ********** TOTAL ENERGY IN Ry =
>>            -238077.92106926
>>            :ENE  : ********** TOTAL ENERGY IN Ry =
>>            -238077.88615877
>>            :ENE  : ********** TOTAL ENERGY IN Ry =
>>            -238077.83389420
>>            :ENE  : ********** TOTAL ENERGY IN Ry =
>>            -238077.80209222
>>            :ENE  : ********** TOTAL ENERGY IN Ry =
>>            -238077.79086646
>>            :ENE  : ********** TOTAL ENERGY IN Ry =
>>            -238077.77803982
>>            :ENE  : ********** TOTAL ENERGY IN Ry =
>>            -238077.77699976
>>            :ENE  : ********** TOTAL ENERGY IN Ry =
>>            -238077.77646892
>>            :ENE  : ********** TOTAL ENERGY IN Ry =
>>            -238077.77629528
>>            :ENE  : ********** TOTAL ENERGY IN Ry =
>>            -238077.77610768
>>            :ENE  : ********** TOTAL ENERGY IN Ry =
>>            -238077.77607630
>>            :ENE  : ********** TOTAL ENERGY IN Ry =
>>            -238077.77603251
>>            :ENE  : ********** TOTAL ENERGY IN Ry =
>>            -238077.77601900
>>            :ENE  : *WARNING** TOTAL ENERGY IN Ry =
>>            -237913.10481970
>>            :ENE  : *WARNING** TOTAL ENERGY IN Ry =
>>            -237912.58423592
>>            :ENE  : *WARNING** TOTAL ENERGY IN Ry =
>>            -237912.26250577
>>            :ENE  : *WARNING** TOTAL ENERGY IN Ry =
>>            -237912.04291171
>>            :ENE  : *WARNING** TOTAL ENERGY IN Ry =
>>            -237911.89361189
>>            :ENE  : *WARNING** TOTAL ENERGY IN Ry =
>>            -237911.78337650
>>            :ENE  : *WARNING** TOTAL ENERGY IN Ry =
>>            -237911.70786686
>>            :ENE  : *WARNING** TOTAL ENERGY IN Ry =
>>            -237911.64791205
>>            :ENE  : *WARNING** TOTAL ENERGY IN Ry =
>>            -237911.60856615
>>            :ENE  : *WARNING** TOTAL ENERGY IN Ry =
>>            -237911.57382848
>>            :ENE  : *WARNING** TOTAL ENERGY IN Ry =
>>            -237911.55377846
>>            :ENE  : *WARNING** TOTAL ENERGY IN Ry =
>>            -237911.53263201
>>            :ENE  : *WARNING** TOTAL ENERGY IN Ry =
>>            -237911.52423892
>>            :ENE  : *WARNING** TOTAL ENERGY IN Ry =
>>            -237911.51178371
>>
>> ...........................................................................
>>            ...........................
>>
>> ...........................................................................
>>            ...........................
>>
>>
>>            Best regards
>>            N. Yedukondalu
>>            ACRHEM, University of Hyderabad.
>>            Hyderabad, India.
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>            On Tue, May 24, 2016 at 3:48 PM, Yedu Kondalu
>>            <nykondalu at gmail.com> wrote:
>>                 Dear Prof. P. Blaha and wien2k users,
>>
>>               We are doing electronic structure calculations
>>            for MX2 type compound. As a first step we performed
>>            the scf calculation and it is completed
>>            successfully without any warning in the total
>>            energy. As a next step, we did TB-mBJ calculation to
>>            get reliable band gap. However, we end up
>>            with warnings in scf file for the total energies
>>            till end of the calculations.
>>
>>                  We also attempted to solve this problem by
>>            following some suggestions from you previously for
>>            HfO2 system
>> (
>> http://wien.zeus.theochem.tuwien.ac.narkive.com/dXWnRjph/fcore-not-converg
>>            ed-at-rmt-warnings) but still warning remains the
>>            same. So, we
>>            kindly request you to suggest us a way to solve this
>>            problem.
>>
>>            We also attached the structure file for your kind
>>            reference. Please find the attachment.
>>
>>            Thanking you sir,
>>
>>            Best regards
>>            N. Yedukondalu
>>            ACRHEM, University of Hyderabad.
>>            Hyderabad, India.
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>            --
>>                             Regards
>>            Neelam Yedukondalu, Research scholar
>>                C/O Dr. G. S. Vaitheeswaran
>>            ACRHEM, University of Hyderabad
>>              Hyderabad - 500046, A.P, India.
>>                    Mobile No : 9490782129
>>
>>
>>
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>>
>>
>>
>>
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