Error in designing

Dear sir,

I want to generate graphene on nickel - structure. I have tried to use Vmd but I got error

ERROR

MOLECULE DESTROYED BY FATAL ERROR! Use resetpsf to start over.

I have written the code in Lammps in order to generate a simulation box containg graphene on Nickel. But may be there is some error. If I am making (z= 0 1) for graphene two layer of graphene are getting generated so I have kept it 0.5. I am also getting the tensile strength values wrong.

can you please help.

The code is given below

units metal
atom_style atomic
echo both
boundary p p p
dimension 3

lattice custom 2.46 a1 1 0 0 a2 0 1.73203 0 a3 0.0 0.0 3.35 basis 0 0 0 basis 0.5 0.16666666666666666 0 basis 0.5 0.5 0 basis 0 0.6666666666666666 0
region upper block 0.5 15 0.5 10 -0.5 0.5

lattice fcc 3.52
region lower block 0 11 0 12 1 6
region whole union 2 upper lower

create_box 2 whole
lattice custom 2.4595 a1 1 0 0 a2 0 1.73203 0 a3 0.0 0.0 3.35 basis 0 0 0 basis 0.5 0.16666666666666666 0 basis 0.5 0.5 0 basis 0 0.6666666666666666 0
create_atoms 1 region upper

lattice fcc 3.52 orient x 1 1 1 orient y 1 -1 0 orient z 1 1 -2

create_atoms 1 region lower

Dear sir,
I want to generate graphene on nickel - structure. I have tried to use Vmd
but I got error
ERROR

MOLECULE DESTROYED BY FATAL ERROR! Use resetpsf to start over.

this is a VMD (or rather psfgen) error and has nothing to do with
LAMMPS. furthermore, there is no tangible information to give any
recommendation.

I have written the code in Lammps in order to generate a simulation box
containg graphene on Nickel. But may be there is some error. If I am making
(z= 0 1) for graphene two layer of graphene are getting generated so I have
kept it 0.5. I am also getting the tensile strength values wrong.
can you please help.

this is really your problem, not ours. this mailing list is not a
debugging service for LAMMPS input files. our time is as valuable to
us as is yours to you.
just simplify your input and visualize it at every step until your can
see and measure/compute it is correct. then gradually add components
and check, if they are added correctly. and so on.

axel.