[Pw_forum] about the feasibility of second order coefficient of Nonlinear Optical within PWSCF

[xu yuehua]

hi ,all here
 i am writing to enquire that is there a way to get the second order
coefficient of Nonlinear Optical within PWSCF,directly or indirectly .
if  your could give me some help or suggestion ,i will be grateful.
thank you in advance.
-- 
Xu Yuehua
physics Department of Nanjing university
China
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