forked from lijiext/lammps
43 lines
984 B
Plaintext
43 lines
984 B
Plaintext
units real
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atom_style full
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read_data data.spce
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pair_style hybrid/overlay coul/cut 12.0 python 12.0
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pair_coeff * * coul/cut
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pair_coeff * * python py_pot.LJCutSPCE OW NULL
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bond_style harmonic
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angle_style harmonic
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dihedral_style none
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improper_style none
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bond_coeff 1 1000.00 1.000
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angle_coeff 1 100.0 109.47
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special_bonds lj/coul 0.0 0.0 1.0
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neighbor 2.0 bin
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fix 1 all shake 0.0001 20 0 b 1 a 1
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fix 2 all nvt temp 300.0 300.0 100.0
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# create combined lj/coul table for all atom types
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# generate tabulated potential from python variant
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pair_write 1 1 2000 rsq 0.1 12 spce.table OW-OW -0.8472 -0.8472
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pair_write 1 2 2000 rsq 0.1 12 spce.table OW-HW -0.8472 0.4236
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pair_write 2 2 2000 rsq 0.1 12 spce.table HW-HW 0.4236 0.4236
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# switch to tabulated potential
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pair_style table linear 2000 pppm
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pair_coeff 1 1 spce.table OW-OW
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pair_coeff 1 2 spce.table OW-HW
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pair_coeff 2 2 spce.table HW-HW
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thermo 10
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run 100
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shell rm spce.table
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