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SYSTEM = Al: atom
ENCUT = 250.00 eV   
NELMDL = 5
ISMEAR = 0; SIGMA=0.1
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SYSTEM = Al: atom
ENCUT = 250  
ISYM = 0 ! no symmetry
ISPIN = 2 ! allow for spin polarisation
VOSKOWN = 1    ! this is important, in particular for GGA
ISMEAR = 0 ! Gaussian smearing, otherwise negative occupancies
SIGMA = 0.1 ! intermid. smearing width
AMIX = 0.2 ! mixing set manually
BMIX = 0.0001
NELM = 20 ! 20 electronic steps
ICHARG = 1
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