# NaCl melt # Born-Mayer-Huggins potential described in (Fumi and Tosi), units real atom_style charge boundary p p p lattice custom 5.640560 & basis 0.000000 0.000000 0.000000 & basis 0.000000 0.500000 0.500000 & basis 0.500000 0.000000 0.500000 & basis 0.500000 0.500000 0.000000 & basis 0.500000 0.500000 0.500000 & basis 0.500000 0.000000 0.000000 & basis 0.000000 0.500000 0.000000 & basis 0.000000 0.000000 0.500000 region box block 0 2 0 2 0 2 create_box 2 box create_atoms 2 box & basis 1 2 basis 2 2 basis 3 2 basis 4 2 & basis 5 1 basis 6 1 basis 7 1 basis 8 1 replicate 10 10 10 group Cl type 1 group Na type 2 mass 1 35.452700 # Cl mass 2 22.989800 # Na set group Cl charge -1 set group Na charge +1 pair_style born/coul/long 10 pair_coeff 2 2 6.081 0.3170 2.340 24.18024 -11.5120 pair_coeff 1 2 4.864 0.3170 2.755 161.2016 -200.02100 pair_coeff 1 1 3.649 0.3170 3.170 1669.588 -3352.8700 dielectric 1.0 kspace_style ewald 1.0e-5 thermo 10 # thermo_style multi velocity all create 300 7777 timestep 1 fix 1 all nvt temp 300 300 1 # dump 0 all atom 1 test.lammpstrj run 1000