CalculationMode = gs
UnitsOutput = ev_angstrom
ExperimentalFeatures = yes

PeriodicDimensions = 1

Spacing = 0.3*angstrom

%LatticeParameters
 3.9986581*angstrom | 10.58*angstrom | 10.58*angstrom
%

%Coordinates
 "Na" | 0.0 | 0.0 | 0.0
%

%KPointsGrid
 9 | 1 | 1
%
KPointsUseSymmetries = yes

Eigensolver = chebyshev_filter
ExtraStates = 4