[Pw_forum] Not convergence of the scf in phonon calculation

李晓川 18733462676 at 163.com
Mon Apr 29 03:47:18 CEST 2013


dear all
       when I computed the scf of phonon,the convergnece is always not attained,I tried changing the "tr2_ph" and "alpha_mixing" to accelarate the speed of convergnece ,But the results is not ideal.So i want to know what can i do to perform the convergence of phonon.e.g.which parameters can be changed ?
 
     
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