Dear Massoud,
If I was you, first thing I do is to minimize the electronic
convergence threshold to 1.0D-9 Ry, the calculated forces are simply
wrong (>10x scf Correction).
! conv_thr=1.0D-8 is ignored, QE took the default value of 1.0D-6
which isn't enough in your case.
Youssef Aharbil,
Laboratory of Physics and Chemistry of Materials
Faculty of sciences Ben msik, Casablanca
Morocco
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