Creation of crystall structure of silicon carbide using pair_style tersoff/zbl ...for radiation simulation

Hello sir.

I am the student of B.tech metallurgy currently working on lammps for simulation of radiation of silicon carbide. i want to know "how to create atoms using basis of si and c . i have gone through the manual but it wasn’t very clear neither i found any example on it.

i want to generate lattice of siliconcarbide with periodic boundary.

kindly help me soon my work is ceased due this issue.

Best Regard:

Jitin doriya