[lammps-users] pair_style hybrid with eam/alloy and eam/fs

Dear all,

I am trying to simulate friction of a Cu-Al tribo pair at high speed and high pressure.

To do so, I wanted to use an eam/alloy potential for copper and an eam/fs potential for aluminuum. Basically, this can be done using the pair_style hybrid. However, the problem is the cross potential between Cu and Al. From my understanding, Lammps automatically generates the cross potentials for basic eam potential only, but not for alloys and fs, because in those cases the parameters are provides explicitly?

I tried to use assign a Cu-Al eam/alloy potential for modelling the Cu-Al interactions, but could not convince lammps to assign the parameters. Is there any way to do that?

Many thanks,

Nothing will be auto-generated for pair_style hybrid. If the
entire system is EAM, I think you should generate one file
with all the EAM interactions and use that. I believe FS is
general enough to encompass the alloy format.