[Pw_forum] Is E_cut higher, the results is better?

Ming Wang ml_wangus at yahoo.com
Tue Feb 22 18:25:12 CET 2005


Hi,
   I used different E_cut(35 Ryd, 135Ryd) to calculate
molecular polarizability. The results are a little
difference, I wonder whether the results from high
E_cut is more reliable than lower E_cut  results. I
realized the E_cut is around 25 Ryd when the USPP is
generated. Does this mean I should choose E_cut around
25 Ryd?

Thanks!

Ming
   


		
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