wf_collect = .true. ! store wfns in 'outdir'/'prefix'.save
outdir = './' ! in outdir folder 'prefix'.save is created, where all calc results are saved
prefix = '7agnr_1uc' ! prepended to input/output filenames
pseudo_dir = '../pseudo' ! folder needs to include all files referenced in section ATOMIC_SPECIES
/
&SYSTEM
ibrav = 8 ! Simple lattice type with vectors (a, 0, 0), (0, b, 0), (0, 0, c)
a = 4.2998760402782
b = 20
c = 15
nat = 18 ! number of atoms in the unit cell
ntyp = 2 ! number of types of atoms in the unit cell
ecutwfc = 30.0 ! kinetic energy cutoff (Ry) for wavefunctions
ecutrho = 240.0 ! ecut for charge density (norm-conserving 4*ecutwfc, for ultrasoft 8*ecutwfc) (corresponds to CP2K CUTOFF and determines the real accuracy)
occupations = 'smearing' ! 'smearing' for metals, 'fixed' for bad-gap materials
degauss=0.001
nbnd = 50
/
&ELECTRONS
electron_maxstep = 50 ! maximum number of iterations in a scf step (default: 100)