how to replace Al atoms in FCC

Dear all,

I want to use Cu atoms to replace 4% Al atoms in FCC. I have read the Manual, but still don’t find the commands to deal with it. Please tell me how to do it.
Many thanks.



The set type/fraction command can flip the
type of a fraction of atoms to different value.
If your pair style treats type 1 as Al, and type 2

as Cu, for example, then that would work.