Kim lammps problem

Hi everybody, i am trying to simulate InPb material using KIM potentials, but i got error. Bellow is the error.

"ERROR: Species ‘In’ is not supported by this KIM Simulator Model (src/KIM/kim_interactions.cpp:168)
Last command: kim interactions Pb In "

and this is the contains of the input :

######### unit cell parameters for GRAPHYNE ##############
variable a equal 3.4280476570
variable b equal 5.9375534058
variable c equal 17.1783752441
#variable c equal 100.0/${a}

#what size do you want the graphene? assuming square sheet

################### Initialize Simulation #########################
clear
#units metal
dimension 3
boundary p p p
atom_style atomic #charge
#atom_modify map array

kim init Sim_LAMMPS_Vashishta_BranicioRinoGan_2009_InP__SM_090647175366_000 metal
kim init Sim_LAMMPS_IFF_PCFF_HeinzMishraLinEmami_2015Ver1v5_FccmetalsMineralsSolventsPolymers__SM_039297821658_000 metal unit_conversion_mode
#kim init Morse_Shifted_GirifalcoWeizer_1959MedCutoff_Pb__MO_958424213898_004 metal
#################### Definition of the system #######################
#----- create Graphyne structure using lattice custum command ------#

lattice custom 1 &
a1 {a} 0.0 0.0 & a2 0.0 {b} 0.0 &
a3 0.0 0.0 ${c} &
basis 0.000000000 0.000000000 0.000000000 &
basis 0.500000000 0.500000000 0.000000000 &
basis 0.500000000 0.833333313 0.333333343 &
basis 0.000000000 0.333333254 0.333333343 &
basis 0.500000000 0.166666672 0.666666687 &
basis 0.000000000 0.666666687 0.666666687 &
basis 0.500000000 0.166666672 0.166666672 &
basis 0.000000000 0.666666687 0.166666672 &
basis 0.000000000 0.000000000 0.500000000 &
basis 0.500000000 0.500000000 0.500000000 &
basis 0.500000000 0.833333313 0.833333313 &
basis 0.000000000 0.333333254 0.833333313

region sim block 0 1 0 1 0 1 units lattice

create_box 2 sim
create_atoms 1 box &
basis 1 2 &
basis 2 2 &
basis 3 2 &
basis 4 2 &
basis 5 2 &
basis 6 2

mass 1 114.818
mass 2 207.200
group In type 1
group Pb type 2

############### Define Interatomic Potential ####################
kim interactions Pb In

################ Define Settings ################################
compute Tp all temp
compute eng all pe/atom
compute eatoms all reduce sum c_eng

################ Run Minimization #################################
reset_timestep 0
fix 1 all box/relax aniso 1.01325 vmax 0.001 #couple xy

thermo 10
thermo_style custom step lx ly lz press c_eatoms etotal pe c_Tp

min_style cg #sd
minimize 1e-25 1e-25 5000 10000

################ Output variable ###################################
variable natoms equal “count(all)”
variable teng equal “c_eatoms”
variable alength equal “lx”
variable blength equal “ly”
variable clength equal “lz”
variable ecoh equal “v_teng/v_natoms”

print “”"
Number of atoms in unit cell = {natoms} Total energy (eV) = {teng}
Lattice constant a (Angstoms) = {alength} Lattice constant b (Angstoms) = {blength}
Lattice constant c (Angstoms) = {clength} Cohesive energy (eV) = {ecoh}
“”" file A_Para.dat

variable extend equal 100
variable xL equal “round(v_extend/v_alength)”
variable yL equal “round(v_extend/v_blength)”
variable zL equal “round(v_extend/v_clength)”

replicate {xL} {yL} ${zL}
variable N_atoms equal “count(all)”

print “”"
Number of atoms in ({xL}x{yL}x1) supercell = ${N_atoms}
“”" append A_Para.dat

write_data OKK.dat

can you please help me to fix this problem? Thanks

Hi Delchere,

Unfortunately there is no way to currently simulate InPb using OpenKIM. We do not have an up-to-date potential that supports both elements, and it is not possible to combine separate potentials. This is a feature we may support in the future, but we do not have an ETA, and it would only work for certain pairs of compatible potentials. There is no reasonable way to combine the Vashishta potential, which is a many-body plus electrostatic potential for InP specifically, with IFF, which is a bonded force field that happens to include Lennard-Jones parameters for Pb.

–ilia

OK. Thank you very much for the prompt response