[Pw_forum] relax not converge

Ngoc Linh Nguyen nnlinh at sissa.it
Wed Apr 21 17:14:30 CEST 2010


Q.J.Wang wrote:
> Dear all
>      When I optimized the structure of two Mn atoms doped 2*2*2 
> supercell, the scf not converge at the eighth cycle and it stops after 
> 100 iterations. So I want to know the reson of this problem, is it the 
> structural distortion ?
The problem has been considered many times and also become "Frequently 
Asked Questions"
> Hwo to solve this problem ?
See in previous archives of Pw_forum or in
http://www.quantum-espresso.org/user_guide/node78.html#SECTION00096020000000000000

Good luck,

Linh
> Any advice will be appreciated .
> --
> Best regards
>  
> Q.J.Wang
>  
> XiangTan University
>
>
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 Nguyen Ngoc Linh, PhD Student
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