Follow-up Qns. to {Re: [Wien] zero energy} + cohesive E

Kevin Jorissen kevin.jorissen at ua.ac.be
Wed Jul 9 10:26:55 CEST 2003


> > You're right about nn: it crashes as soon as the interatomic nn-distance
is
> > larger than 20 bohr, which for an fcc lattice happens for a lattice
constant
> > larger than 28.25. Strange, wasn't this limit increased in one of the
> > updates?
> >
In nn.for (or nn.f) there's a cutoff parameter that limits the action of nn
to this distance.    It's called dstmax and is defined as min(20,something
like the lattice parameters).  Increase the 20 to whatever (50 for example),
recompile nn and copy the executable back to $WIENROOT, and your problems
will be solved.

Kevin.




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