[CP2K-user] [CP2K:18884] Running NVT AIMD simulation with RPBE D3 in air-water interface system.

zhaoan chen zz242117 at gmail.com
Sun Jun 4 15:20:20 UTC 2023


Dear all,
I want to study the Air-Water Interface system, so I build a 15* 15* 30 Å 
water slab with a periodic box of 15* 15* 71.44 Å. The initial condition 
was obtained from a GROMACS-NVT simulation with the SPC/E force field. Then 
I want to run a NVT simulation with RPBE-D3 in CP2K, but I can't find how 
to add D3 correction with RPBE function. Here is my input file and the 
snapshot at 6900th frame. I find some water molecules running out of the 
box. Is my input file correct?

I would be very grateful indeed for any help you could give me.
Best wishes.
Zhaoan Chen

My input file setting (section XC) is as follows:
......
   &XC
      FUNCTIONAL_ROUTINE NEW
      &XC_POTENTIAL
        ENERGY XC_FUNCTIONAL
      &END XC_POTENTIAL
      &XC_FUNCTIONAL
        &LIBXC
  FUNCTIONAL GGA_X_RPBE
&END LIBXC
      &END XC_FUNCTIONAL
      &VDW_POTENTIAL
        POTENTIAL_TYPE PAIR_POTENTIAL
        &PAIR_POTENTIAL
          TYPE DFTD3
          CALCULATE_C9_TERM .TRUE.
          REFERENCE_C9_TERM .TRUE.
          LONG_RANGE_CORRECTION .TRUE.
          PARAMETER_FILE_NAME ./dftd3.dat
          REFERENCE_FUNCTIONAL PBE
        &END PAIR_POTENTIAL
      &END VDW_POTENTIAL
    &END XC
.....

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