[Wien] energy and band gap difference between mbj+(SO) and mbj+SO

tran at theochem.tuwien.ac.at tran at theochem.tuwien.ac.at
Thu Feb 28 22:06:55 CET 2019


The two calculations seem to be well converged.
Did you check that all input files (struct, in0, in1, etc.)
of the two calculations are the same?
Is it a magnetic system?


On Thursday 2019-02-28 18:59, fatima DFT wrote:

>Date: Thu, 28 Feb 2019 18:59:34
>From: fatima DFT <fatimadft5 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] energy and band gap difference between mbj+(SO) and mbj+SO
>
>Below are the results
>
>(1) When -SO applied simultaneously with mBJ:
>
>:FER  : F E R M I - ENERGY(TETRAH.M.)=   0.8119131549
>:DIS  :  CHARGE DISTANCE       ( 0.0001106 for atom    3 spin 1)      0.0000816
>:PLANE:  PW TOTAL      8.2043 DISTAN   5.49E-05  6.70E-04 %
>:CHARG:  CLM/ATOM   1059.7473 DISTAN   7.90E-05  7.46E-06 %
>:RANK :  ACTIVE   4.04/8  =  50.52 %
>:DIRM :  MEMORY  8/8  SCALE   1.000 RED  0.92 PRED  0.18 NEXT  0.34 BETA  0.66
>:DIRP :  |MSR1|= 3.995E-05 |PRATT|= 5.494E-05 ANGLE=  22.1 DEGREES
>:DIRQ :  |MSR1|= 2.075E-04 |PRATT|= 2.371E-04 ANGLE=  19.8 DEGREES
>:DIRT :  |MSR1|= 2.113E-04 |PRATT|= 2.434E-04 ANGLE=  20.0 DEGREES
>:ENE  : ********** TOTAL ENERGY IN Ry =      -164801.40499891
>:FER  : F E R M I - ENERGY(TETRAH.M.)=   0.8119201578
>:DIS  :  CHARGE DISTANCE       ( 0.0000129 for atom    3 spin 1)      0.0000085
>:PLANE:  PW TOTAL      8.2043 DISTAN   7.11E-06  8.67E-05 %
>:CHARG:  CLM/ATOM   1059.7473 DISTAN   8.44E-06  7.97E-07 %
>:RANK :  ACTIVE   3.41/8  =  42.66 %
>:DIRM :  MEMORY  8/8  SCALE   1.000 RED  0.11 PRED  0.34 NEXT  0.32 BETA  0.83
>:DIRP :  |MSR1|= 7.478E-06 |PRATT|= 7.114E-06 ANGLE=  31.2 DEGREES
>:DIRQ :  |MSR1|= 3.450E-05 |PRATT|= 2.533E-05 ANGLE=  29.3 DEGREES
>:DIRT :  |MSR1|= 3.530E-05 |PRATT|= 2.631E-05 ANGLE=  29.6 DEGREES
>:ENE  : ********** TOTAL ENERGY IN Ry =      -164801.40492477
>:FER  : F E R M I - ENERGY(TETRAH.M.)=   0.8119217580
>:DIS  :  CHARGE DISTANCE       ( 0.0000045 for atom    3 spin 1)      0.0000020
>:PLANE:  PW TOTAL      8.2043 DISTAN   3.07E-06  3.75E-05 %
>:CHARG:  CLM/ATOM   1059.7473 DISTAN   2.44E-06  2.31E-07 %
>:RANK :  ACTIVE   4.64/11 =  42.17 %
>:DIRM :  MEMORY 11/12 SCALE   1.000 RED  0.30 PRED  0.32 NEXT  0.83 BETA  0.94
>:DIRP :  |MSR1|= 7.789E-06 |PRATT|= 3.073E-06 ANGLE=  60.3 DEGREES
>:DIRQ :  |MSR1|= 2.725E-05 |PRATT|= 7.335E-06 ANGLE=  86.0 DEGREES
>:DIRT :  |MSR1|= 2.834E-05 |PRATT|= 7.952E-06 ANGLE=  83.4 DEGREES
>:ENE  : ********** TOTAL ENERGY IN Ry =      -164801.40491210
>:FER  : F E R M I - ENERGY(TETRAH.M.)=   0.8119235705
>:DIS  :  CHARGE DISTANCE       ( 0.0000113 for atom    3 spin 1)      0.0000077
>:PLANE:  PW TOTAL      8.2044 DISTAN   6.06E-06  7.39E-05 %
>:CHARG:  CLM/ATOM   1059.7474 DISTAN   7.61E-06  7.18E-07 %
>:RANK :  ACTIVE   4.92/12 =  40.96 %
>:DIRM :  MEMORY 12/12 SCALE   1.000 RED  2.97 PRED  0.83 NEXT  0.33 BETA  0.75
>:DIRP :  |MSR1|= 5.281E-06 |PRATT|= 6.064E-06 ANGLE=  31.4 DEGREES
>:DIRQ :  |MSR1|= 3.236E-05 |PRATT|= 2.283E-05 ANGLE=  32.6 DEGREES
>:DIRT :  |MSR1|= 3.279E-05 |PRATT|= 2.362E-05 ANGLE=  33.0 DEGREES
>:ENE  : ********** TOTAL ENERGY IN Ry =      -164801.40490145
>:FER  : F E R M I - ENERGY(TETRAH.M.)=   0.8119227978
>:DIS  :  CHARGE DISTANCE       ( 0.0000099 for atom    3 spin 1)      0.0000078
>:PLANE:  PW TOTAL      8.2043 DISTAN   4.43E-06  5.40E-05 %
>:CHARG:  CLM/ATOM   1059.7473 DISTAN   7.50E-06  7.07E-07 %
>:RANK :  ACTIVE   5.41/13 =  41.62 %
>:DIRM :  MEMORY 13/12 SCALE   1.000 RED  0.97 PRED  0.33 NEXT  0.16 BETA  0.94
>:DIRP :  |MSR1|= 7.520E-06 |PRATT|= 4.427E-06 ANGLE= 144.2 DEGREES
>:DIRQ :  |MSR1|= 3.307E-05 |PRATT|= 2.249E-05 ANGLE= 164.5 DEGREES
>:DIRT :  |MSR1|= 3.392E-05 |PRATT|= 2.292E-05 ANGLE= 163.1 DEGREES
>:ENE  : ********** TOTAL ENERGY IN Ry =      -164801.40491264
>
>
>(2) When first performed mbj and then applied -SO with simple scf calculation:
>
>:FER  : F E R M I - ENERGY(TETRAH.M.)=   0.8135912669
>:DIS  :  CHARGE DISTANCE       ( 0.0001741 for atom    3 spin 1)      0.0000852
>:PLANE:  PW TOTAL      8.2266 DISTAN   7.30E-05  8.88E-04 %
>:CHARG:  CLM/ATOM   1059.7682 DISTAN   9.42E-05  8.88E-06 %
>:RANK :  ACTIVE   7.80/10 =  78.01 %
>:DIRM :  MEMORY 10/8  SCALE   1.000 RED  1.12 PRED  0.04 NEXT  0.06 BETA  0.96
>:DIRP :  |MSR1|= 1.948E-05 |PRATT|= 7.304E-05 ANGLE=  25.8 DEGREES
>:DIRQ :  |MSR1|= 6.537E-05 |PRATT|= 2.825E-04 ANGLE=  36.1 DEGREES
>:DIRT :  |MSR1|= 6.821E-05 |PRATT|= 2.917E-04 ANGLE=  35.5 DEGREES
>:ENE  : ********** TOTAL ENERGY IN Ry =      -164802.17300771
>:FER  : F E R M I - ENERGY(TETRAH.M.)=   0.8135865066
>:DIS  :  CHARGE DISTANCE       ( 0.0001223 for atom    3 spin 1)      0.0000605
>:PLANE:  PW TOTAL      8.2266 DISTAN   5.08E-05  6.17E-04 %
>:CHARG:  CLM/ATOM   1059.7682 DISTAN   6.65E-05  6.27E-06 %
>:RANK :  ACTIVE   7.07/9  =  78.59 %
>:DIRM :  MEMORY  9/8  SCALE   1.000 RED  0.71 PRED  0.06 NEXT  0.09 BETA  0.93
>:DIRP :  |MSR1|= 3.447E-05 |PRATT|= 5.077E-05 ANGLE=  28.0 DEGREES
>:DIRQ :  |MSR1|= 1.060E-04 |PRATT|= 1.994E-04 ANGLE=  37.5 DEGREES
>:DIRT :  |MSR1|= 1.114E-04 |PRATT|= 2.058E-04 ANGLE=  37.0 DEGREES
>:ENE  : ********** TOTAL ENERGY IN Ry =      -164802.17303076
>:FER  : F E R M I - ENERGY(TETRAH.M.)=   0.8135782348
>:DIS  :  CHARGE DISTANCE       ( 0.0000328 for atom    3 spin 1)      0.0000161
>:PLANE:  PW TOTAL      8.2266 DISTAN   1.26E-05  1.53E-04 %
>:CHARG:  CLM/ATOM   1059.7682 DISTAN   1.78E-05  1.68E-06 %
>:RANK :  ACTIVE   5.51/8  =  68.83 %
>:DIRM :  MEMORY  8/8  SCALE   1.000 RED  0.27 PRED  0.09 NEXT  0.20 BETA  0.99
>:DIRP :  |MSR1|= 7.703E-06 |PRATT|= 1.262E-05 ANGLE=  32.9 DEGREES
>:DIRQ :  |MSR1|= 1.989E-05 |PRATT|= 5.342E-05 ANGLE=  39.5 DEGREES
>:DIRT :  |MSR1|= 2.133E-05 |PRATT|= 5.489E-05 ANGLE=  39.6 DEGREES
>:ENE  : ********** TOTAL ENERGY IN Ry =      -164802.17306503
>:FER  : F E R M I - ENERGY(TETRAH.M.)=   0.8135761573
>:DIS  :  CHARGE DISTANCE       ( 0.0000179 for atom    3 spin 1)      0.0000095
>:PLANE:  PW TOTAL      8.2266 DISTAN   7.62E-06  9.26E-05 %
>:CHARG:  CLM/ATOM   1059.7682 DISTAN   1.02E-05  9.62E-07 %
>:RANK :  ACTIVE   5.09/8  =  63.67 %
>:DIRM :  MEMORY  8/8  SCALE   1.000 RED  0.57 PRED  0.20 NEXT  0.33 BETA  0.98
>:DIRP :  |MSR1|= 9.230E-06 |PRATT|= 7.620E-06 ANGLE=  38.1 DEGREES
>:DIRQ :  |MSR1|= 2.364E-05 |PRATT|= 3.060E-05 ANGLE=  39.1 DEGREES
>:DIRT :  |MSR1|= 2.538E-05 |PRATT|= 3.153E-05 ANGLE=  39.5 DEGREES
>:ENE  : ********** TOTAL ENERGY IN Ry =      -164802.17307018
>:FER  : F E R M I - ENERGY(TETRAH.M.)=   0.8135740567
>:DIS  :  CHARGE DISTANCE       ( 0.0000058 for atom    3 spin 1)      0.0000031
>:PLANE:  PW TOTAL      8.2266 DISTAN   3.94E-06  4.79E-05 %
>:CHARG:  CLM/ATOM   1059.7682 DISTAN   3.53E-06  3.33E-07 %
>:RANK :  ACTIVE   4.45/8  =  55.57 %
>:DIRM :  MEMORY  8/8  SCALE   1.000 RED  0.36 PRED  0.33 NEXT  0.83 BETA  0.99
>:DIRP :  |MSR1|= 3.012E-06 |PRATT|= 3.944E-06 ANGLE=  86.3 DEGREES
>:DIRQ :  |MSR1|= 8.349E-06 |PRATT|= 1.060E-05 ANGLE=  54.1 DEGREES
>:DIRT :  |MSR1|= 8.876E-06 |PRATT|= 1.131E-05 ANGLE=  58.4 DEGREES
>:ENE  : ********** TOTAL ENERGY IN Ry =      -164802.17307670
>
>
>
>
>On Thu, Feb 28, 2019 at 11:00 PM <tran at theochem.tuwien.ac.at> wrote:
>      Hi,
>
>      In principle the two procedures should lead to the same result.
>
>      Are the two calculations well converged with respect to the
>      scf iterations? Show us what you obtain when you do "grep :ENE" in the
>      scf files.
>
>      F. Tran
>
>      On Thursday 2019-02-28 16:14, fatima DFT wrote:
>
>      >Date: Thu, 28 Feb 2019 16:14:50
>      >From: fatima DFT <fatimadft5 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: [Wien] energy and band gap difference between mbj+(SO) and mbj+SO
>      >
>      >Dear Wien2k Users,
>      >Greetings!
>      >
>      >I have done TB-mBJ calculation for a system.
>      >I performed mbj+SO in two different ways and found inconsistency in the total energy.
>      >
>      >1.
>      >done PBE scf
>      >saved pbe scf
>      >init_mbj_lapw
>      >run_lapw -p -i 1 -so -NI
>      >saved the calculations
>      >opted "0" to perform TB-mBJ
>      >run_lapw -p -ec 0.00001 -cc 0.0001 -so  -i 400 -NI
>      >
>      >Total ENE is -164802.17307670 Ry
>      >
>      >
>      >2. Done pbe scf
>      >saved pbe_scf
>      >init_mbj_lapw
>      >run_lapw -p -i 1  -NI
>      >saved the calculations
>      >opted "0" to perform TB-mBJ
>      >run_lapw -p -ec 0.00001 -cc 0.0001   -i 400 -NI
>      >
>      >saved mbj scf
>      >run_lapw -p -ec 0.00001 -cc 0.0001 -so   -i 400 -NI
>      >
>      >Total energy is : -164801.40491264 Ry
>      >
>      >
>      >The total energy difference between the two approaches is -.768 (Ry) ~10eV which is too much.
>      >
>      >Could someone please help me to understand why I am getting this difference?
>      >Which process is okay for mbj+SO calculation? or what is wrong in my calculations?
>      >
>      >Thanks in advance.
>      >
>      >Sincerely
>      >[cleardot.gif] Fatima
>      >
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>
>


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