[Pw_forum] lambda convergence

[英国 高]

Dear all PWSCF users,
     Before I calcualte the electron-phonon coupling constant, I should judge the convergence of lambda with k-mesh and Gaussian broadening. But my results
  show that lambda at a choosed q point do not close to be a constant with increasing Gaussian broadening at different k-meshs, it continues to decrease. I think the largest k-mesh has been already very large. So what is the reason for this and how should I choose the gaussian broadening  in this case.
  Thanks for any suggestion.
                                                                                              user
                                                                                            guoying  

 		
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