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Dear Users,
I have computed
the optical properties of Si by using two program input.f and
optical.f in the directory siesta-2.0.1/Util/Optical and the program
is successfully run for Si but as I run the calculation for LaAs the
file e2.dat successfully generated but when everytime when I type the
command $./optical < e2.dat it is showing
the error as follows
Do you want to include a Drude
term? This is typically needed for metals if yes:
enter 1, if no: enter 0 invalid integer: read unexpected
character apparent state: unit 5 (unnamed) last format: list
io lately reading direct formatted external IO Aborted
Please
guide me where I have done a mistake ?
My .fdf file is as follows
SystemName LaAs SystemLabel LaAs
NumberOfAtoms 2 NumberOfSpecies 2 %block ChemicalSpeciesLabel 1 57 La 2 33 As %endblock ChemicalSpeciesLabel
PAO.BasisType split PAO.BasisSize DZP PAO.EnergyShift 0.1 eV PAO.SplitNorm 0.2000
%block
PAO.Basis # Define Basis set La 2 # Species label, number of l-shells n=6 0 2 P 1 # n, l, Nzeta, Polarization, NzetaPol 0.000 0.000 1.000 1.000 n=5 2 2 # n, l, Nzeta 0.000 0.000
1.000 1.000 As 2 # Species label, number of l-shells n=4 0 2 P 1 # n, l, Nzeta, Polarization, NzetaPol 0.000 0.000 1.000 1.000 n=4 1 2 # n, l, Nzeta 0.000 0.000 1.000 1.000 %endblock
PAO.Basis
LatticeConstant 6.124 Ang
%block LatticeVectors 0.0 0.5 0.5 0.5 0.0 0.5 0.5 0.5 0.0 %endblock LatticeVectors
%block GeometryConstraints routine constr %endblock GeometryConstraints
MeshCutoff 112.0 Ry
# SCF options MaxSCFIterations 100 # Maximum number of SCF iter DM.MixingWeight 0.3 # New DM amount for next SCF cycle DM.Tolerance 1.d-4 # Tolerance in
maximum difference DM.NumberPulay 8 # Number of pulay mixing steps DM.UseSaveDM .false. # tells if already existing density matrix is to be used or not
OpticalCalculation .true. Optical.EnergyMaximum 10 Ry %block Optical.Mesh 10 10 10 %endblock Optical.Mesh Optical..Broaden 0.02 Ry Optical.PolarizationType Polycrstal %block Optical.Vector 1.0 1.0 0.0 %block Optical.Vector
WriteCoorXmol WriteMullikenPop 1 WriteForces
.true. ElectronicTemperature 30 meV xc.functional LDA xc..authors CA # WriteCoorStep .true. #AtomCoorFormatOut Ang
SolutionMethod Diagon # OrderN or Diagon
AtomicCoordinatesFormat Fractional %block AtomicCoordinatesAndAtomicSpecies 0.0000 0.0000 0.0000 1 0.5000 0.5000 0.5000 2 %endblock
AtomicCoordinatesAndAtomicSpecies
MD.TypeOfRun CG # Type of dynamics: MD.NumCGsteps 580 # Number of CG steps for MD.MaxCGDispl 0.4 Ang # Maximum atomic displacement MD.MaxForceTol 0.01 eV/Ang # Tolerance in the maximum MD.MaxStressTol 0.1 GPa MD.VariableCell .true.
%block kgrid_Monkhorst_Pack 8 0 0 0.0
0 8 0 0.0 0 0 8 0.0 %endblock kgrid_Monkhorst_Pack
%block ProjectedDensityOfStates -20.00 10.00 0.2 500 eV %endblock ProjectedDensityOfStates
WriteKpoints ..true. WriteEigenvalues .true. WriteKbands .true. WriteBands .true.
%block BandLines 1 1.00 1.00 1.00 L 25 2.00 2.00 2.00 \Gamma 25 2.00 0.00 0.00 X 25 2.00 1.00 0.00 W 25 1..00 1.00 1.00 L 25 1.00 1.00 0.00 K 25 0.00 0.00 0.00 \Gamma %endblock BandLines
Thanks and Regards,
Subhra Kulshrestha Project Fellow (UGC), Condensed MatterTheory Group School of Studies in Physics Jiwaji University, GWALIOR - 474011 (M.P.), INDIA
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