# Crystalline aluminum : 
# create the screening file

#Parameter for the screening calculation
optdriver    3
gwcalctyp    2
nband       30
ecuteps     4.0
ecutwfn     4.0

nfreqim      4
nfreqre     10
freqremax    1.

#Definition of occupation numbers
occopt 3
tsmear 0.05

#Definition of the unit cell
acell 3*7.652

rprim  0.0  0.5  0.5   # FCC primitive vectors (to be scaled by acell)
       0.5  0.0  0.5 
       0.5  0.5  0.0

#Definition of the atom types
ntypat 1     
znucl 13    

#Definition of the atoms
natom 1  
typat 1  
xred  0.0  0.0  0.0  

#Definition of the planewave basis set
ecut  8.0

#Definition of the k-point grid
kptopt       1        
ngkpt        4 4 4
nshiftk      1      
shiftk       0.  0.  0. 
istwfk       8*1

#Definition of the SCF procedure
nstep       50          
toldfe      1.0d-8     
                  
prtvol     5
enunit     1


