Spin polarized bandstructure calculation for nickel

We prepare the input file pw_scf_ni.in and run the calculation:

mpirun -np 8 pw.x -i pw_scf_ni.in > pw_scf_ni.out

Prepare the input file for bands calculation pw_bands_ni.in with our desired k-path and run:

mpirun -np 8 pw.x -i pw_bands_ni.in > pw_bands_ni.out

Now we perform the bands.x calculation with spin_component=1 to process only the spin up bands:

src/ni/bands_ni_up.in

&BANDS
    outdir='./tmp/',
    prefix='ni',
    filband='ni_bands_up.dat',
    spin_component = 1,
/

Run the calculation:

mpirun -np 8 bands.x -i bands_ni_up.in > bands_ni_up.out

Similarly, we process the spin down bands spin_component=2 and plot them.