Here is the input and structure file.<br><br><div class="gmail_quote"><div dir="auto" class="gmail_attr">在2022年8月25日星期四 UTC+8 15:45:28<zhouk...@gmail.com> 写道:<br/></div><blockquote class="gmail_quote" style="margin: 0 0 0 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Dear all,<div><br></div><div>Now I am simulation the MXene (Ti3C2O2)+water system. But SCF can not converge. </div><div>The initial structure is from the MD simulation using VASP (PBE+D3) and thus the problem is not from bad positions of atoms.</div><div><br></div><div>Can anyone give me some suggestions?<br></div><div><br></div><div><div>Best,</div><div>Justin</div></div><div>-----------------------------------------------------------------</div><div>&FORCE_EVAL<br> ! the electronic structure part of CP2K is named Quickstep<br> METHOD Quickstep<br> STRESS_TENSOR ANALYTICAL<br> &DFT<br> BASIS_SET_FILE_NAME ./BASIS_MOLOPT <br> POTENTIAL_FILE_NAME ./POTENTIAL <br> WFN_RESTART_FILE_NAME ./MX-RESTART.wfn<br> &MGRID<br> CUTOFF [Ry] 400 <br> &END<br> &QS<br> ! use the GPW method (i.e. pseudopotential based calculations with the Gaussian and Plane Waves scheme).<br> METHOD GPW <br> ! default threshold for numerics ~ roughly numerical accuracy of the total energy per electron,<br> ! sets reasonable values for all other thresholds.<br> EPS_DEFAULT 1.0E-10 <br> ! used for MD, the method used to generate the initial guess.<br> EXTRAPOLATION ASPC <br> EXTRAPOLATION_ORDER 4<br> &END<br><br> &POISSON<br> PERIODIC XYZ ! the default, gas phase systems should have 'NONE' and a wavelet solver<br> &END<br> &PRINT<br> ! output atomic charge<br> &MULLIKEN <br> ! FILENAME ${SYSTEM}<br> &EACH<br> MD 10<br> &END EACH<br> &END MULLIKEN<br> ! output others <br> &END<br> ! use the OT METHOD for robust and efficient SCF, suitable for all non-metallic systems.<br> &SCF <br> SCF_GUESS RESTART !!!#####ATOMIC ! can be used to RESTART an interrupted calculation<br> MAX_SCF 1000<br> EPS_SCF 1.0E-7 <br> &OUTER_SCF ! repeat the inner SCF cycle 10 times<br> MAX_SCF 10<br> EPS_SCF 1.0E-7<br> &END<br><br> &OT ON<br> MINIMIZER DIIS<br> &END OT<br><br><br><br> &END SCF<br><br> ! specify the exchange and correlation treatment<br> &XC<br> ! use a PBE functional <br> &XC_FUNCTIONAL PBE<br> &END XC_FUNCTIONAL<br> ! adding Grimme's D3 correction (by default without C9 terms) <br> &VDW_POTENTIAL<br> POTENTIAL_TYPE PAIR_POTENTIAL <br> &PAIR_POTENTIAL<br> PARAMETER_FILE_NAME dftd3.dat<br> TYPE DFTD3<br> REFERENCE_FUNCTIONAL PBE<br> &END<br> &END VDW_POTENTIAL<br><br> &XC_GRID<br> XC_SMOOTH_RHO NN50<br> XC_DERIV NN50_SMOOTH<br> &END<br><br> &END XC<br> &END DFT<br><br> <br> ! description of the system<br> &SUBSYS<br> &CELL <br> ! unit cells that are orthorhombic are more efficient with CP2K<br> ABC [angstrom] 12.0944890976000003 10.4741353988999997 16.2000007629000002<br> &END CELL<br><br> ! atom coordinates can be in the &COORD section,<br> ! or provided as an external file.<br> &TOPOLOGY<br> COORD_FILE_NAME MX-wt.xyz <br> COORD_FILE_FORMAT XYZ<br> &END<br><br> ! MOLOPT basis sets are fairly costly,<br> ! but in the 'DZVP-MOLOPT-SR-GTH' available for all elements<br> ! their contracted nature makes them suitable<br> ! for condensed and gas phase systems alike.<br><br> &KIND C<br> BASIS_SET DZVP-MOLOPT-SR-GTH <br> POTENTIAL GTH-PBE<br> &END KIND<br> &KIND Ti<br> BASIS_SET DZVP-MOLOPT-SR-GTH <br> POTENTIAL GTH-PBE<br> &END KIND<br> &KIND H<br> BASIS_SET DZVP-MOLOPT-SR-GTH <br> POTENTIAL GTH-PBE<br> &END KIND<br> &KIND O<br> BASIS_SET DZVP-MOLOPT-SR-GTH <br> POTENTIAL GTH-PBE<br> &END KIND<br> &KIND Li<br> BASIS_SET DZVP-MOLOPT-SR-GTH<br> POTENTIAL GTH-PBE<br> &END KIND<br> &END SUBSYS<br>&END FORCE_EVAL<br></div><div><br></div><div>-----------------------</div><div><br></div><div><br></div><div><br></div></blockquote></div>
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