Moving two layer over one another

I want to determine gamma surface energy and for this purpose I created two group of atom for two layer and run the code in lammps but movement was not occured.
Input script is attached for reference. (1.2 KB)

You don’t have any fix updating the positions of the atoms. Also the total duration of your simulation is 5 fs so you would not see much anyway…

These trivial errors show that you absolutely need proper training in MD before attempting to perform such relatively complicated simulations. There is a lot of simple examples and tutorials online, I would start there if I were you.

Thank you very much
I shall try accordingly.