I am optimizing Ni_CuWO4/gC3N4 system but the calculation terminated showing the error SCF did not converge after the maximum number of steps. As per the suggestion given by Prof. Nick in the forum, I have played with the mixing weight. Initially, I kept mixing weight at 0.05 and then gradually decreased up to 0.005. Also, I have checked with 0.1. Kindly suggest to me how to solve this issue. The input is given below for your reference. Thanking you with regards Jyotirmoy
# System Descriptor SystemName Au-m-GGA SystemLabel Au-m-GGA NumberOfAtoms 64 NumberOfSpecies 6 %block Chemical_Species_Label 1 6 C 2 7 N 3 8 O 4 28 Ni 5 29 Cu 6 74 W %endblock Chemical_Species_Label %block PAO.BasisSizes C DZP N DZP O DZP Ni DZP Cu DZP W DZP %endblock PAO.BasisSizes AtomicCoordinatesFormat Ang AtomicCoorFormatOut Ang %block AtomicCoordinatesAndAtomicSpecies 6.1181 0.2377 8.9015 1 C 14.0667 0.2266 8.9379 1 C 8.5620 0.2227 9.8949 2 N 16.6416 0.2593 9.5216 2 N 4.7633 0.2686 8.4995 2 N 12.6415 0.2331 8.7549 2 N 7.8646 1.3452 9.6715 1 C 15.8991 1.3550 9.4135 1 C 6.5377 1.3437 9.5268 2 N 14.5631 1.3590 9.4256 2 N 2.8185 1.4865 9.2632 2 N 10.6990 1.4556 9.5692 2 N 3.9955 1.4942 8.6207 1 C 11.8798 1.4554 8.9112 1 C 2.0582 2.5677 8.9699 1 C 9.9427 2.5337 9.2359 1 C 4.5645 2.5679 8.0819 2 N 12.4332 2.5358 8.3880 2 N 8.5324 2.5453 9.4850 2 N 16.5545 2.5725 9.2130 2 N 3.8523 3.6750 8.3137 1 C 11.7238 3.6485 8.5906 1 C 2.5330 3.6915 8.4518 2 N 10.3940 3.6484 8.6732 2 N 6.6399 3.7903 8.6184 2 N 14.5366 3.7629 8.6102 2 N 7.7725 3.7751 9.3234 1 C 15.7790 3.7873 9.1163 1 C 7.1860 3.4905 12.1308 3 O 12.5170 3.4736 12.1603 3 O 17.8287 3.3294 11.8556 3 O 4.7235 3.4211 11.0232 3 O 10.1279 3.6009 11.4827 3 O 15.3016 3.5078 11.5531 3 O 3.5314 4.0003 12.2647 6 W 8.8020 4.1758 12.5571 6 W 14.0880 4.0945 12.7350 6 W 5.7370 2.1356 12.0801 5 Cu 16.3440 2.1376 12.3887 5 Cu 3.9125 1.1743 12.1378 3 O 9.1847 1.3617 12.5343 3 O 14.4883 1.2723 12.6153 3 O 6.3382 1.0687 13.5843 3 O 11.7842 1.0491 13.7621 3 O 17.0620 0.8026 13.5558 3 O 3.9419 3.5444 13.9598 3 O 9.1980 3.7155 14.2521 3 O 14.4497 3.6325 14.4455 3 O 6.3955 3.4453 15.3869 3 O 11.7086 3.4316 15.5716 3 O 17.1209 3.2374 15.3809 3 O 6.7890 0.6192 15.2771 6 W 12.1170 0.6076 15.4809 6 W 17.4962 0.4177 15.2683 6 W 4.6283 2.4363 15.3917 5 Cu 15.2799 2.3537 15.6275 5 Cu 5.6302 1.2253 16.5228 3 O 10.8726 1.2066 16.6388 3 O 16.3371 1.0134 16.5152 3 O 3.2299 1.0492 15.5874 3 O 8.4222 1.2208 15.6806 3 O 13.7330 1.2036 15.9717 3 O 9.9109 2.4789 15.5498 4 Ni 11.0499 2.1820 12.3846 4 Ni %endblock AtomicCoordinatesAndAtomicSpecies LatticeConstant 1.00 Ang %block LatticeVectors 15.9064 0.0000 0.0000 -0.2517 4.6287 0.0000 4.1859 -0.3183 22.8650 %endblock LatticeVectors %block kgrid_Monkhorst_Pack 3 0 0 0.0 0 3 0 0.0 0 0 1 0.0 %endblock kgrid_Monkhorst_Pack XC.functional GGA XC.authors PBE SpinPolarized .true. MeshCutoff 300. Ry MaxSCFIterations 300 DM.MixingWeight 0.05 DM.Tolerance 5.d-5 DM.NumberPulay 5 SolutionMethod diagon ElectronicTemperature 300 K MD.TypeOfRun cg MD.VariableCell .true. MD.NumCGsteps 800 MD.MaxForceTol 0.01 eV/Ang WriteCoorInitial WriteCoorStep WriteCoorXmol .true. WriteKpoints .true. WriteEigenvalues .true. WriteKbands .true. WriteBands .true. WriteMullikenPop 1 WriteMDCoorXmol .false. WriteMDhistory .false. DM.UseSaveDM MD.UseSaveXV .true. SaveRho SaveDeltaRho SaveElectrostaticPotential .true. WriteSiestaDim .true. Jyotirmoy Deb Senior Project Associate Advanced Computation and Data Science Division (ACDSD) CSIR-North East Institute of Science & Technology, Jorhat-785006, Assam, India. & Ex-DST-INSPIRE Senior Research Fellow Department of Physics Assam University, Silchar-788011, Assam, India. Ph. No: +919435589869/+917002140643 Email: deb.jyotirmo...@gmail.com Webpage: https://urldefense.com/v3/__https://sites.google.com/view/jyotirmoy-dft-phy/home__;!!D9dNQwwGXtA!QsrHFZMMJZrGO38JvPI0lXUSBnv2BpPdfXpL97sSzimCBFhSVPw8gdvXM2QgCzvidySJ03USY9VhtEnKX1sWJTdX$
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