I am a new user of LAMMPS. I am trying to create a unit cell of NaCl crystal (which is 2 inter-locked FCC Na and Cl lattices separately). In this the problem i face after creating two individual lattices by “lattice” command is that Im not able to specify the type of atoms for each separate lattice inter-locked within each other.
I have also given the initial part of my input file.
boundary s s s
lattice fcc 3.2 origin 0.0 0.0 0.0
lattice fcc 3.2 origin 0.5 0.0 0.0
region total block 0 4.0 0 4.0 0 4.0 units box
neighbor 0.1 bin
create_box 2 total
create_atoms 2 region total
So, please please give any suggestion regarding how to specify “create_atoms” command in this case.
Any help regarding this topic is heartily welcome.