NEB Barrier is zero !

Hi,

I am running a TAD simulation for an adatom on Ag surface.

It shows that a few events have taken place where “Barrier” height is 0.0 eV.

Does it make any sense ?

Best regards,

Hard to say. Possibly your system became
too disordered. I suggest you extract the 2 states
on either side of the event from the dump file
and run it independently and examine the
"event" more closely, including visualizing it.