[Pw_forum] query on e-ph matrix element

Ajit Vallabhaneni avallabh at purdue.edu
Tue Dec 13 00:44:27 CET 2011


Dear Paolo

      Can you please explain what the variable "zdotc" in elphon.f90 exactly does? I think it calculates the derivative of the potential.  It is declared as an external variable but i couldnot figure out the location it has been calculated. Can you show me the the path as well where it is calculated ? 


Thanks
Ajit


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