[Pw_forum] query on e-ph matrix element

[Ajit Vallabhaneni]

Dear users,

           I am trying to calculate e-ph matrix element (g) for Aluminium as a function of q (phonon wave vector) and nu(index of the phonon branch). I had gone thru the source code "elphon.f90" for this purpose. I could figure out all the variables like k,i,j,q but not nu. I see a variable 'imode0' which i cannot figure out its purpose. Can someone please help me with identifying the nu ? 

Also is there an efficient way to estimate g from the values of lambda and gamma ?


Thanks
Ajit