Yes, in the nwpw block the default units are in atomic units or Bohrs.
However, in the geometry block the units are angstroms. I guess the rationale for having the nwpw block be bohrs by default is that all the other units in the nwpw block are in atomic units.
You can change the simulation_cell units by entering
simulation_cell units angstroms
lattice
lat_a 27.3254 .
lat_b 27.3254
lat_c 47.2432 . #that's a pretty big cell
alpha 90.0
beta 90.0
gamma 90.0
end
end
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