Si conventional cell - geometry example 1.0 5.43 0 0 0 5.43 0 0 0 5.43 Si 8 Direct 0 0 0 0 0.5 0.5 0.5 0 0.5 0.5 0.5 0 0.25 0.25 0.25 0.25 0.75 0.75 0.75 0.25 0.75 0.75 0.75 0.25