[lammps-users] Pair_style hybrid/overlay problem

Hi all,

I'm doing the simulation which superposes multiple pair style on several pairs of atoms. I tried to run the following code, but I always get the same error message:

# 1 - C 2 - S 3 - Au
pair_style hybrid/overlay morse 12 lj/cut 12
pair_modify mix arithmetic
pair_coeff 1 1 lj/cut 0.00513 3.914 9.785
pair_coeff 2 2 lj/cut 0.01724 4.250 10.625
pair_coeff 2 1 lj/cut 0.01086 3.550 8.875
pair_coeff 2 3 lj/cut 0.01086 3.550 8.875
pair_coeff 3 3 lj/cut 0.001691 2.934 7.335
pair_coeff 3 3 morse 0.475 1.583 3.0242 7.5605
pair_coeff 3 2 morse 0.380 1.470 2.650 6.625

...

ERROR: Incorrect args for pair coefficients

I checked my input file and couldn't see anything wrong. Can anyone point out where the problem is? Thanks.

cs