[Pw_forum] A question about electron phonon coupling calculation

[Stefano de Gironcoli]

because the code calculates the integral of the el-ph strength averaged 
on the Fermi surface.
stefano

On Tue, 22 May 2007, Chao Cao wrote:

> I noticed that the manual pointed out el-ph coupling calculation is limited 
> to metal systems only. I am curious about where this restriction comes from? 
> Is it related with screening?
>
> Thanks
>
> Chao Cao
>
>