# cp how_to_set_environment_variable ~/.vaspkit and modify the ~/.vaspkit file based on your settings!

VASP5                         .TRUE.                         # .TRUE. or .FALSE.; Set .FALSE. if you are using vasp.4.x

LDA_PATH                      ~/POTCAR/LDA                   #  Path of LDA potential.

PBE_PATH                      ~/POTCAR/PBE                   #  Path of PBE potential.

GGA_PATH                      ~/POTCAR/GGA                   #  Path of PW91 potential.

POTCAR_TYPE                    PBE                           #  PBE, PW91 or LDA; Set PBE if you want to make PBE-POTCAR file

GW_POTCAR                     .FALSE.                        # .TRUE. or .FALSE.; For example, H_GW, O_GW will be chose when POTCAR_GW = .TRUE.

RECOMMENDED_POTCAR            .TRUE.                         # .TRUE. or .FALSE.; The recommended PAW potential will be chose when RECOMMENDED_POTCAR = .TRUE.

SET_FERMI_ENERGY_ZERO         .TRUE.                         # .TRUE. or .FALSE.; The Fermi Energy will be set to zero eV when SET_FERMI_ENERGY_ZERO = .TRUE.

MINI_INCAR                    .FALSE.                        # .TRUE. or .FALSE.; A simplified INCAR will be written when MINI_INCAR = .TRUE.

USER_DEFINED_INCAR            .FALSE.                        # .TRUE. or .FALSE.; whether to use embedded INCAR templates or user defined INCAR templates

WRITE_SELECTIVE_DYNAMICS      .FALSE.                        # .TRUE. or .FALSE.; whether the selective dymanics set will be forced to write when SET_SELECTIVE_DYNAMICS_MODE = .FALSE.

PYTHON_BIN                     ~/anaconda3/bin/python3       #  Python executable program with its installation path. I recommend you install anaconda package for Python data science

PLOT_MATPLOTLIB               .FALSE.                        # .TRUE. or .FALSE.; Set .TRUE. if you want to generate Graphs. (Matplotlib and Numpy packages MUST be embedded in Python)

VASPKIT_UTILITIES_PATH        ~/vaspkit/utilities            #  IF ADVANCED_USER is .TRUE., set VASPKIT_UTILITIES_PATH like ~/vaspkit.0.72/utilities in order to use scripts in it.

ADVANCED_USER                 .TRUE.                         # .TRUE. or .FALSE.; Please fill in your settings in the block 'USER_DEFINED' if you want vaspkit to integrate your own scripts in the 'UTILITIES' file.

SET_INCAR_WRITE_MODE           OVERRIDE                      #  OVERRIDE, APPEND, BACK-UP-OLD,BACK-UP-NEW;  "Customize INCAR File"  whether to override existing INCAR/appending existing INCAR/backup existing INCAR to INCAR.old && write into INCAR/write into INCAR.new

PHS_CORRECTION                .FALSE.                        # .TRUE. or .FALSE.; whether to make PHS correction during linear optical calculations. More details on this correction are given in Comput. Mater. Sci. 172 (2020) 109315.

# Reset the default values of variables in here

SYMPREC                        1E-5                          # Distance tolerance in Cartesian coordinates to find crystal symmetry (default value: 1E-5)

EMIN                          -20.0                          # Minimum energy for evaluation of DOS (default value: -20.0 eV)

EMAX                           20.0                          # Maximum energy for evaluation of DOS (default value:  20.0 eV)

NEDOS                          2001                          # Number of grid points in DOS (default value: 2001)

GAMMA_CENTERED                .TRUE.                         # .TRUE. or .FALSE.; (default value: .TRUE.)

VACUUM_THICKNESS               15.0                          # The thickness of vacuum to build slab or 2D materials (default value: 10 angstrom)

CENTER_SLAB                   .TRUE.                         # Center the slab in the z direction; (default value: .TRUE.)