Dear lammps users,
I have a simple question, the input script for creating atoms:
boundary p p p
units metal
atom_style atomic
lattice fcc 3.524 origin 0 0 0 orient x -2 1 1 orient y 0 -1 1 orient z 1 1 1
region box block 0 {length} 0 {height} 0 100 units box
create_box 1 box
region myreg block 0 {length} 0 {height} $a $b units box
create_atoms 1 region myreg
My question is when I change $a and only create 3 layers of atoms, I created different lowest layers among C1, C2, and C3, but I use “units box”, which only set the region boundaries, shouldn’t I always create the same layer?
How can I achieve this goal in lammps?
Any help will be appreciated.
Best wishes,
June