[Q-e-developers] yukawa

[Lorenzo Paulatto]

Hello,
there is an undocumented input variable "yukawa" related to the EXX code. 

In ./Modules/input_parameters.f90 there is also mention of a 
exxdiv_treatment='yukawa' option, but it actually isn't allowed. 

Actually, there is not check to prevent you from using yukawa with other 
exxdiv treatment methods and I suspect that some of these combinations are bad 
E.g. setting x_gamma_extrapolation=.true. (whic is the default) seems to 
nullify the effect of yukawa.

Could anybody who knows this part document it in INPUT_PW?


-- 
Dr. Lorenzo Paulatto 
IdR @ IMPMC -- CNRS & Université Paris 6
phone: +33 (0)1 44275 084 / skype: paulatz
www:   http://www-int.impmc.upmc.fr/~paulatto/
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