&control
   prefix = 'Al'
   calculation = 'scf'
   outdir = './tmp/'
   pseudo_dir = './'
/
&system
   ibrav = 2
   celldm(1) = 7.50
   nat = 1
   ntyp = 1
   ecutwfc = 12.0
   occupations = 'tetrahedra_opt'
/
&electrons
/
ATOMIC_SPECIES
 Al  26.98  Al.pz-vbc.UPF
ATOMIC_POSITIONS crystal
 Al  0.0  0.0  0.0
K_POINTS automatic
 6 6 6 1 1 1