Error From pair_hybrid

LAMMPS
, ,
1

Dear all,
I want to use the hybrid command to mix the MEAM potential with the LJ potential for simulating the selective laser melting (SLM) process of the Al-Mn-Mg-Sc-Zr system. Below is the pair potential section of my input file:

pair_style hybrid meam meam meam meam meam meam lj/cut 10
pair_coeff * * meam 1 library-Al.meam Al Al.meam Al NULL NULL NULL NULL
pair_coeff * * meam 2 library-Mn.meam Mn Mn.meam NULL Mn NULL NULL NULL
pair_coeff * * meam 3 library-Mg.meam Mg Mg.meam NULL NULL Mg NULL NULL
pair_coeff * * meam 4 library-Zr.meam Zr Zr.meam NULL NULL NULL NULL Zr
pair_coeff * * meam 5 library-AlMg.meam Al Mg AlMg.meam Al NULL Mg NULL NULL
pair_coeff * * meam 6 library-AlZr.meam Al Zr AlZr.meam Al NULL NULL NULL Zr
pair_coeff 1 2 lj/cut 0.0710 2.4064 #Al-Mn
pair_coeff 1 4 lj/cut 0.0204 2.9121 #Al-Sc
pair_coeff 2 3 lj/cut 0.0052 2.1789 #Mn-Mg
pair_coeff 2 4 lj/cut 0.0029 2.7228 #Mn-Sc
pair_coeff 2 5 lj/cut 0.0857 2.5684 #Mn-Zr
pair_coeff 3 4 lj/cut 0.0015 2.6367 #Mg-Sc
pair_coeff 3 5 lj/cut 0.0446 2.4872 #Mg-Zr
pair_coeff 4 4 lj/cut 0.0008 3.2950 #Sc-Sc
pair_coeff 4 5 lj/cut 0.0247 3.1081 #Sc-Zr


However, I encountered the following error message:

ERROR: Pair hybrid sub-style is not used (../pair_hybrid.cpp:524)

I would like to know how to solve this issue, and whether mixing MEAM and LJ potentials is appropriate for simulating this system.
I will appreciate any suggestion to get ride off this error please.Thanks！

2

Your first pair_coeff statement is erased by the fifth and sixth.

Your entire force field setting is bogus. As has been explained here many times previously, with a hybrid pair style, you cannot mix and match EAM and MEAM pair styles, since the embedding term will only be correctly computed for the interactions in each sub-style. Thus you must have a single pair style for all elements. Any attempt to use pair style hybrid will produce bogus results.