# bulk Cu lattice units metal atom_style atomic lattice fcc 3.615 region box block 0 $x 0 $y 0 $z create_box 1 box create_atoms 1 box pair_style eam pair_coeff 1 1 Cu_u3.eam velocity all create 1600.0 376847 loop geom neighbor 1.0 bin neigh_modify every 1 delay 5 check yes fix 1 all nve timestep 0.005 thermo 50 run $t