[lammps-users] how to model

Dear all,
I’m a new LAMMPS user. I’m trying to build a model of Cu60Al40. But I’ve no clue how to start. If anybody of you can help me with a sample input file of how to make models in LAMMPS I shall remain thankful to you.
best regards

Krishnan. Read the literature. Check Web of Science for papers about similar systems. Learn about molecular modeling, and start with simpler systems first (say Lennard Jones). Then you will gradually, over time, get an idea of where to start and be able to ask a more specific question.