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# LAMMPS Sputtering Simulation — Generated by Physics::PVD
# Ion bombardment to study sputter yield and cascade dynamics

units           metal
atom_style      atomic
boundary        p p s

lattice         bcc 3.3
region          target block 0 10 0 10 0 8
create_box      2 target
create_atoms    1 box

pair_style      eam/alloy
pair_coeff      * * potentials/CuTa.eam.alloy Ta Ar

# Create Ar ion above target
create_atoms    2 single 5.0 5.0 30.0
group           ion type 2
group           target type 1

velocity        target create 300 54321
velocity        ion set 0.0 0.0 -0.38048194400739

fix             nve_all all nve
fix             temp_ctrl target langevin 300 300 100.0 48279

timestep        1
thermo          100
dump            cascade all atom 50 ./lammps_cu_on_ta/dump.sputter.lammpstrj

run             5000
write_data      ./lammps_cu_on_ta/post_sputter.data