Dear Mojtaba,
I have not encountered this error before, so I cannot comment on it.
But I think it is a little bit strange to apply the electric field in the nscf
calculation only. If you would like to calculate the polarization in the
presence of the electric field , you need 2 scf
Dear Users
I perform lelfield=.true. option in PWSCF (only in nscf) for berry
calculations of polarization but unfortunately
" Wrong k-string? "
error is showed.
I do not know how to solve it
I have this error when I run this nscf input:
calculation = 'nscf' ,
