Dear:

I want to repeat the result got from Prof. Brandbyge's article
'Origin Of Current-Induced Forces In An Atomic Gold Wire: A First
Principles Study'
I got the same trend in force but the value of the force is not match with
the result of this article. (pic attached is my result and article's result)
what's the problem for my calculation?
below's are my input.

Elec:
SystemName  Elec-Au
SystemLabel Elec-Au

# Atomic coordinates
NumberOfAtoms 018
AtomicCoordinatesFormat Ang
%block AtomicCoordinatesAndAtomicSpecies
0.00000000  1.77345822  0.00000000  1
3.07172169  1.77345822  0.00000000  1
6.14344338  1.77345822  0.00000000  1
1.53586084  4.43364706  0.00000000  1
3.07172169  7.09383590  0.00000000  1
4.60758253  4.43364706  0.00000000  1
6.14344338  7.09383590  0.00000000  1
7.67930422  4.43364706  0.00000000  1
9.21516507  7.09383590  0.00000000  1
-1.53586084  0.88672961  2.50127158  1
1.53586084  0.88672961  2.50127158  1
4.60758253  0.88672961  2.50127158  1
0.00000000  3.54691845  2.50127158  1
1.53586084  6.20710728  2.50127158  1
3.07172169  3.54691845  2.50127158  1
4.60758253  6.20710728  2.50127158  1
6.14344338  3.54691845  2.50127158  1
7.67930422  6.20710728  2.50127158  1
%endblock AtomicCoordinatesAndAtomicSpecies

# UNIT CELL
LatticeConstant       1.0 Ang
%block LatticeVectors
9.21529607  0.00000000  0.00000000
4.60764854  7.98068051  0.00000000
0.00000000  0.00000000  4.99155000
%endblock LatticeVectors


# K-points

%block kgrid_Monkhorst_Pack
1   0   0   0.0
0   1   0   0.0
0   0   10   0.5
%endblock kgrid_Monkhorst_Pack


# Chemical species

NumberOfSpecies 1
%block ChemicalSpeciesLabel
  1  79 Au
%endblock ChemicalSpeciesLabel

# Basis set variables
PAO.BasisType split
PAO.BasisSize SZP
PAO.energyshift  0.005  Ry
PAO.BasisType   split

# General variables

ElectronicTemperature  300 K
SolutionMethod    diagon
MeshCutoff           200. Ry
xc.functional         LDA           # Exchange-correlation functional
xc.authors            CA
SpinPolarized false
          # Exchange-correlation version

# SCF variables

DM.MixSCF1   T
MaxSCFIterations      100           # Maximum number of SCF iter
DM.MixH               T
DM.MixingWeight       0.03          # New DM amount for next SCF cycle
DM.Tolerance          1.d-4         # Tolerance in maximum difference
DM.UseSaveDM          true          # to use continuation files
DM.NumberPulay         6
OccupationFunction     MP

# MD variables

MD.FinalTimeStep 1
MD.TypeOfRun CG
MD.NumCGsteps     000
MD.UseSaveXV     .true.

# Output variables

WriteMullikenPop                1
WriteBands                      .false.
SaveRho                         .false.
SaveDeltaRho                    .false.
SaveHS                          .false.
SaveElectrostaticPotential      no
SaveTotalPotential              no
WriteCoorXmol                   .true.
WriteMDXmol                     .true.
WriteMDhistory                  .false.
WriteEigenvalues                yes

scatter:
SystemName  BDT-Au-1K
SystemLabel BDT-Au-1K


TS.SaveHS   .true.
TS.SaveLead .true.

# ATOMIC POSITIONS
# Atomic coordinates
NumberOfAtoms 84
AtomicCoordinatesFormat Ang
%block AtomicCoordinatesAndAtomicSpecies
0.00000000  0.00000000  0.00000000  1
3.07172169  0.00000000  0.00000000  1
6.14344338  0.00000000  0.00000000  1
1.53586084  2.66018884  0.00000000  1
3.07172169  5.32037767  0.00000000  1
4.60758253  2.66018884  0.00000000  1
6.14344338  5.32037767  0.00000000  1
7.67930422  2.66018884  0.00000000  1
9.21516507  5.32037767  0.00000000  1
0.00000000  1.77345822  2.50127458  1
3.07172169  1.77345822  2.50127458  1
6.14344338  1.77345822  2.50127458  1
1.53586084  4.43364706  2.50127458  1
3.07172169  7.09383590  2.50127458  1
4.60758253  4.43364706  2.50127458  1
6.14344338  7.09383590  2.50127458  1
7.67930422  4.43364706  2.50127458  1
9.21516507  7.09383590  2.50127458  1
-1.53586084  0.88672961  5.00254615  1
1.53586084  0.88672961  5.00254615  1
4.60758253  0.88672961  5.00254615  1
0.00000000  3.54691845  5.00254615  1
1.53586084  6.20710728  5.00254615  1
3.07172169  3.54691845  5.00254615  1
4.60758253  6.20710728  5.00254615  1
6.14344338  3.54691845  5.00254615  1
7.67930422  6.20710728  5.00254615  1
0.00000100  0.00000000  7.49282457  1
3.07172169  0.00000000  7.49282457  1
6.14344338  0.00000000  7.49282457  1
1.53586084  2.66018884  7.49282557  1
3.07172169  5.32037767  7.49282557  1
4.60758253  2.66018884  7.49282557  1
6.14344238  5.32037767  7.49282557  1
7.67930422  2.66018884  7.49282557  1
9.21516507  5.32037767  7.49282557  1
0.00000000  1.77345822  10.00842135  1
3.07172169  1.77345822  10.00842135  1
6.14344338  1.77345822  10.00842135  1
1.53586184  4.43364706  10.00842135  1
3.07172269  7.09383590  10.00842135  1
4.60758353  4.43364706  10.00842135  1
6.14344438  7.09383590  10.00842135  1
7.67930522  4.43364706  10.00842135  1
9.21516507  7.09383590  10.00842135  1
3.07172234  3.54691955  12.42011351  1
3.07172280  3.54691895  15.36850129  1
3.07172241  3.54691961  18.31689056  1
0.00000000  1.77345822  20.72857382  1
3.07172169  1.77345822  20.72857382  1
6.14344338  1.77345822  20.72857382  1
1.53586184  4.43364706  20.72857382  1
3.07172269  7.09383590  20.72857382  1
4.60758353  4.43364706  20.72857382  1
6.14344438  7.09383590  20.72857382  1
7.67930522  4.43364706  20.72857382  1
9.21516507  7.09383590  20.72857382  1
0.00000100  0.00000000  23.24416960  1
3.07172169  0.00000000  23.24416960  1
6.14344338  0.00000000  23.24416960  1
1.53586084  2.66018884  23.24416960  1
3.07172169  5.32037767  23.24416960  1
4.60758253  2.66018884  23.24416960  1
6.14344238  5.32037767  23.24416960  1
7.67930422  2.66018884  23.24416960  1
9.21516507  5.32037767  23.24416960  1
-1.53586084  0.88672961  25.73444802  1
1.53586084  0.88672961  25.73444802  1
4.60758253  0.88672961  25.73444802  1
0.00000000  3.54691845  25.73444802  1
1.53586084  6.20710728  25.73444802  1
3.07172169  3.54691845  25.73444802  1
4.60758253  6.20710728  25.73444802  1
6.14344338  3.54691845  25.73444802  1
7.67930422  6.20710728  25.73444802  1
0.00000000  1.77345822  28.23571960  1
3.07172169  1.77345822  28.23571960  1
6.14344338  1.77345822  28.23571960  1
1.53586084  4.43364706  28.23571960  1
3.07172169  7.09383590  28.23571960  1
4.60758253  4.43364706  28.23571960  1
6.14344338  7.09383590  28.23571960  1
7.67930422  4.43364706  28.23571960  1
9.21516507  7.09383590  28.23571960  1
%endblock AtomicCoordinatesAndAtomicSpecies

# UNIT CELL
LatticeConstant       1.0 Ang
%block LatticeVectors
9.21529607  0.00000000  0.00000000
4.60764854  7.98068051  0.00000000
0.00000000  0.00000000 30.73699118
%endblock LatticeVectors


# K-points

%block kgrid_Monkhorst_Pack
4   0   0   0.0
0   4   0   0.0
0   0   4   0.0
%endblock kgrid_Monkhorst_Pack


# Chemical species

NumberOfSpecies 1
%block ChemicalSpeciesLabel
  1  79 Au
%endblock ChemicalSpeciesLabel

# Basis set variables

PAO.BasisType split
PAO.BasisSize    SZP
PAO.BasisType                   split           # Type of basis ('nones',
'nonodes', 'split')
PAO.energyshift    0.005  Ry

# General variables

ElectronicTemperature  300 K

SolutionMethod transiesta
MeshCutoff           200. Ry
xc.functional         LDA           # Exchange-correlation functional
xc.authors            CA
SpinPolarized false
          # Exchange-correlation version

# SCF variables

DM.MixSCF1   T
MaxSCFIterations      100           # Maximum number of SCF iter
DM.MixH               T
DM.MixingWeight       0.03          # New DM amount for next SCF cycle
DM.Tolerance          1.d-4         # Tolerance in maximum difference
DM.UseSaveDM          true          # to use continuation files
DM.NumberPulay         5
OccupationFunction     MP

# MD variables

MD.FinalTimeStep 1
MD.TypeOfRun CG
MD.NumCGsteps     000
#%block GeometryConstraints
#position from 1 to 36
#position from 41 to 85
#%endblock GeometryConstraints
MD.UseSaveXV     .true.
UseSaveData   .true.

# Output variables

WriteMullikenPop                1
WriteBands                      .false.
SaveRho                         .false.
SaveDeltaRho                    .false.
SaveHS                          .true.
SaveElectrostaticPotential      no
SaveTotalPotential              no
WriteCoorXmol                   .true.
WriteMDXmol                     .true.
WriteMDhistory                  .false.
WriteEigenvalues                yes

TS.Voltage 2.0 eV
TS.biasContour.NumPoints  100
TS.biasContour.Eta 0.001 eV
SaveTotalPotential T
SaveRho T
SaveElectrostaticPotential T

#------------------------------------
# ELECTRODES
# -----------------------------------
# LEFT ELECTRODE
TS.HSFileLeft '../../elec/4x4/Elec-Au.TSHS'
TS.NumUsedAtomsLeft  18
TS.BufferAtomsLeft  9
# RIGHT ELECTRODE
TS.HSFileRight  '../../elecCBA/4x4/Elec-Au.TSHS'
TS.NumUsedAtomsRight  18

can somebody help with my problem?
Thanks a lot!

-- 
Best Regards

邱芳瑜  Chiu Fang Yu
國立成功大學 材料科學與工程學系碩二
MOBILE:0930287221(中華)
GMAIL:[email protected] <[email protected]>



2014-11-16 19:34 GMT+08:00 joyce79928cc . <[email protected]>:

> Dear:
>
> I want to repeat the result got from Prof. Brandbyge's article
> 'Origin Of Current-Induced Forces In An Atomic Gold Wire: A First
> Principles Study'
> I got the same trend in force but the value of the force is not match with
> the result of this article. (pic attached is my result and article's result)
> what's the problem for my calculation?
> below's are my input.
>
> Elec:
> SystemName  Elec-Au
> SystemLabel Elec-Au
>
> # Atomic coordinates
> NumberOfAtoms 018
> AtomicCoordinatesFormat Ang
> %block AtomicCoordinatesAndAtomicSpecies
> 0.00000000 1.77345822 0.00000000 1
> 3.07172169 1.77345822 0.00000000 1
> 6.14344338 1.77345822 0.00000000 1
> 1.53586084 4.43364706 0.00000000 1
> 3.07172169 7.09383590 0.00000000 1
> 4.60758253 4.43364706 0.00000000 1
> 6.14344338 7.09383590 0.00000000 1
> 7.67930422 4.43364706 0.00000000 1
> 9.21516507 7.09383590 0.00000000 1
> -1.53586084 0.88672961 2.50127158 1
> 1.53586084 0.88672961 2.50127158 1
> 4.60758253 0.88672961 2.50127158 1
> 0.00000000 3.54691845 2.50127158 1
> 1.53586084 6.20710728 2.50127158 1
> 3.07172169 3.54691845 2.50127158 1
> 4.60758253 6.20710728 2.50127158 1
> 6.14344338 3.54691845 2.50127158 1
> 7.67930422 6.20710728 2.50127158 1
> %endblock AtomicCoordinatesAndAtomicSpecies
>
> # UNIT CELL
> LatticeConstant       1.0 Ang
> %block LatticeVectors
> 9.21529607 0.00000000 0.00000000
> 4.60764854 7.98068051 0.00000000
> 0.00000000 0.00000000  4.99155000
> %endblock LatticeVectors
>
>
> # K-points
>
> %block kgrid_Monkhorst_Pack
> 1   0   0   0.0
> 0   1   0   0.0
> 0   0   10   0.5
> %endblock kgrid_Monkhorst_Pack
>
>
> # Chemical species
>
> NumberOfSpecies 1
> %block ChemicalSpeciesLabel
>   1  79 Au
> %endblock ChemicalSpeciesLabel
>
> # Basis set variables
> PAO.BasisType split
> PAO.BasisSize SZP
> PAO.energyshift  0.005  Ry
> PAO.BasisType   split
>
> # General variables
>
> ElectronicTemperature  300 K
> SolutionMethod    diagon
> MeshCutoff           200. Ry
> xc.functional         LDA           # Exchange-correlation functional
> xc.authors            CA
> SpinPolarized false
>           # Exchange-correlation version
>
> # SCF variables
>
> DM.MixSCF1   T
> MaxSCFIterations      100           # Maximum number of SCF iter
> DM.MixH               T
> DM.MixingWeight       0.03          # New DM amount for next SCF cycle
> DM.Tolerance          1.d-4         # Tolerance in maximum difference
> DM.UseSaveDM          true          # to use continuation files
> DM.NumberPulay         6
> OccupationFunction     MP
>
> # MD variables
>
> MD.FinalTimeStep 1
> MD.TypeOfRun CG
> MD.NumCGsteps     000
> MD.UseSaveXV     .true.
>
> # Output variables
>
> WriteMullikenPop                1
> WriteBands                      .false.
> SaveRho                         .false.
> SaveDeltaRho                    .false.
> SaveHS                          .false.
> SaveElectrostaticPotential      no
> SaveTotalPotential              no
> WriteCoorXmol                   .true.
> WriteMDXmol                     .true.
> WriteMDhistory                  .false.
> WriteEigenvalues                yes
>
> scatter:
> SystemName  BDT-Au-1K
> SystemLabel BDT-Au-1K
>
>
> TS.SaveHS   .true.
> TS.SaveLead .true.
>
> # ATOMIC POSITIONS
> # Atomic coordinates
> NumberOfAtoms 84
> AtomicCoordinatesFormat Ang
> %block AtomicCoordinatesAndAtomicSpecies
> 0.00000000 0.00000000 0.00000000 1
> 3.07172169 0.00000000 0.00000000 1
> 6.14344338 0.00000000 0.00000000 1
> 1.53586084 2.66018884 0.00000000 1
> 3.07172169 5.32037767 0.00000000 1
> 4.60758253 2.66018884 0.00000000 1
> 6.14344338 5.32037767 0.00000000 1
> 7.67930422 2.66018884 0.00000000 1
> 9.21516507 5.32037767 0.00000000 1
> 0.00000000 1.77345822 2.50127458 1
> 3.07172169 1.77345822 2.50127458 1
> 6.14344338 1.77345822 2.50127458 1
> 1.53586084 4.43364706 2.50127458 1
> 3.07172169 7.09383590 2.50127458 1
> 4.60758253 4.43364706 2.50127458 1
> 6.14344338 7.09383590 2.50127458 1
> 7.67930422 4.43364706 2.50127458 1
> 9.21516507 7.09383590 2.50127458 1
> -1.53586084 0.88672961 5.00254615 1
> 1.53586084 0.88672961 5.00254615 1
> 4.60758253 0.88672961 5.00254615 1
> 0.00000000 3.54691845 5.00254615 1
> 1.53586084 6.20710728 5.00254615 1
> 3.07172169 3.54691845 5.00254615 1
> 4.60758253 6.20710728 5.00254615 1
> 6.14344338 3.54691845 5.00254615 1
> 7.67930422 6.20710728 5.00254615 1
> 0.00000100 0.00000000 7.49282457 1
> 3.07172169 0.00000000 7.49282457 1
> 6.14344338 0.00000000 7.49282457 1
> 1.53586084 2.66018884 7.49282557 1
> 3.07172169 5.32037767 7.49282557 1
> 4.60758253 2.66018884 7.49282557 1
> 6.14344238 5.32037767 7.49282557 1
> 7.67930422 2.66018884 7.49282557 1
> 9.21516507 5.32037767 7.49282557 1
> 0.00000000 1.77345822 10.00842135 1
> 3.07172169 1.77345822 10.00842135 1
> 6.14344338 1.77345822 10.00842135 1
> 1.53586184 4.43364706 10.00842135 1
> 3.07172269 7.09383590 10.00842135 1
> 4.60758353 4.43364706 10.00842135 1
> 6.14344438 7.09383590 10.00842135 1
> 7.67930522 4.43364706 10.00842135 1
> 9.21516507 7.09383590 10.00842135 1
> 3.07172234 3.54691955 12.42011351 1
> 3.07172280 3.54691895 15.36850129 1
> 3.07172241 3.54691961 18.31689056 1
> 0.00000000 1.77345822 20.72857382 1
> 3.07172169 1.77345822 20.72857382 1
> 6.14344338 1.77345822 20.72857382 1
> 1.53586184 4.43364706 20.72857382 1
> 3.07172269 7.09383590 20.72857382 1
> 4.60758353 4.43364706 20.72857382 1
> 6.14344438 7.09383590 20.72857382 1
> 7.67930522 4.43364706 20.72857382 1
> 9.21516507 7.09383590 20.72857382 1
> 0.00000100 0.00000000 23.24416960 1
> 3.07172169 0.00000000 23.24416960 1
> 6.14344338 0.00000000 23.24416960 1
> 1.53586084 2.66018884 23.24416960 1
> 3.07172169 5.32037767 23.24416960 1
> 4.60758253 2.66018884 23.24416960 1
> 6.14344238 5.32037767 23.24416960 1
> 7.67930422 2.66018884 23.24416960 1
> 9.21516507 5.32037767 23.24416960 1
> -1.53586084 0.88672961 25.73444802 1
> 1.53586084 0.88672961 25.73444802 1
> 4.60758253 0.88672961 25.73444802 1
> 0.00000000 3.54691845 25.73444802 1
> 1.53586084 6.20710728 25.73444802 1
> 3.07172169 3.54691845 25.73444802 1
> 4.60758253 6.20710728 25.73444802 1
> 6.14344338 3.54691845 25.73444802 1
> 7.67930422 6.20710728 25.73444802 1
> 0.00000000 1.77345822 28.23571960 1
> 3.07172169 1.77345822 28.23571960 1
> 6.14344338 1.77345822 28.23571960 1
> 1.53586084 4.43364706 28.23571960 1
> 3.07172169 7.09383590 28.23571960 1
> 4.60758253 4.43364706 28.23571960 1
> 6.14344338 7.09383590 28.23571960 1
> 7.67930422 4.43364706 28.23571960 1
> 9.21516507 7.09383590 28.23571960 1
> %endblock AtomicCoordinatesAndAtomicSpecies
>
> # UNIT CELL
> LatticeConstant       1.0 Ang
> %block LatticeVectors
> 9.21529607 0.00000000 0.00000000
> 4.60764854 7.98068051 0.00000000
> 0.00000000 0.00000000 30.73699118
> %endblock LatticeVectors
>
>
> # K-points
>
> %block kgrid_Monkhorst_Pack
> 4   0   0   0.0
> 0   4   0   0.0
> 0   0   4   0.0
> %endblock kgrid_Monkhorst_Pack
>
>
> # Chemical species
>
> NumberOfSpecies 1
> %block ChemicalSpeciesLabel
>   1  79 Au
> %endblock ChemicalSpeciesLabel
>
> # Basis set variables
>
> PAO.BasisType split
> PAO.BasisSize    SZP
> PAO.BasisType                   split           # Type of basis ('nones',
> 'nonodes', 'split')
> PAO.energyshift    0.005  Ry
>
> # General variables
>
> ElectronicTemperature  300 K
>
> SolutionMethod transiesta
> MeshCutoff           200. Ry
> xc.functional         LDA           # Exchange-correlation functional
> xc.authors            CA
> SpinPolarized false
>           # Exchange-correlation version
>
> # SCF variables
>
> DM.MixSCF1   T
> MaxSCFIterations      100           # Maximum number of SCF iter
> DM.MixH               T
> DM.MixingWeight       0.03          # New DM amount for next SCF cycle
> DM.Tolerance          1.d-4         # Tolerance in maximum difference
> DM.UseSaveDM          true          # to use continuation files
> DM.NumberPulay         5
> OccupationFunction     MP
>
> # MD variables
>
> MD.FinalTimeStep 1
> MD.TypeOfRun CG
> MD.NumCGsteps     000
> #%block GeometryConstraints
> #position from 1 to 36
> #position from 41 to 85
> #%endblock GeometryConstraints
> MD.UseSaveXV     .true.
> UseSaveData   .true.
>
> # Output variables
>
> WriteMullikenPop                1
> WriteBands                      .false.
> SaveRho                         .false.
> SaveDeltaRho                    .false.
> SaveHS                          .true.
> SaveElectrostaticPotential      no
> SaveTotalPotential              no
> WriteCoorXmol                   .true.
> WriteMDXmol                     .true.
> WriteMDhistory                  .false.
> WriteEigenvalues                yes
>
> TS.Voltage 2.0 eV
> TS.biasContour.NumPoints  100
> TS.biasContour.Eta 0.001 eV
> SaveTotalPotential T
> SaveRho T
> SaveElectrostaticPotential T
>
> #------------------------------------
> # ELECTRODES
> # -----------------------------------
> # LEFT ELECTRODE
> TS.HSFileLeft '../../elec/4x4/Elec-Au.TSHS'
> TS.NumUsedAtomsLeft  18
> TS.BufferAtomsLeft  9
> # RIGHT ELECTRODE
> TS.HSFileRight  '../../elecCBA/4x4/Elec-Au.TSHS'
> TS.NumUsedAtomsRight  18
>
> can somebody help with my problem?
> Thanks a lot!
> --
> Best Regards
>
> 邱芳瑜  Chiu Fang Yu
> 國立成功大學 材料科學與工程學系碩二
> MOBILE:0930287221(中華)
> GMAIL:[email protected] <[email protected]>
>
>
>

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