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units metal dimension 3 boundary s s s atom_style atomic variable latparam equal 5.42 # ----------------------- ATOM DEFINITION ---------------------------- lattice diamond ${latparam} region box block 0 6 0 6 0 15 #units box create_box 1 box create_atoms 1 box mass 1 28.0855 # ------------------------ FORCE FIELDS ------------------------------ pair_style tersoff pair_coeff * * Si.tersoff Si # ------------------------- SETTINGS --------------------------------- ###################################### # EQUILIBRATION reset_timestep 0 ##################################### region 1 block INF INF INF INF INF 3 group lower region 1 region 2 block INF INF INF INF 12 INF group upper region 2 group boundary union lower upper group mobile subtract all boundary compute new mobile temp ##################################### fix 1 lower setforce NULL NULL 0.0 #¹Ì¶¨Ï±ߵÄÔ×Ó fix 3 upper setforce NULL NULL 0.0 fix 2 all nvt temp 1.0 1.0 1 velocity lower set 0.0 0.0 0.0 velocity upper set 0.0 0.0 0.3 velocity mobile ramp vz 0.0 0.3 z 3 17 sum yes thermo 200 timestep 0.003 thermo_modify temp new dump 1 all atom 500 dump.crack run 300000 |
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