EPW Forum

Dear all,

I found a nice figure on the EPW website (also the same as Figure 2b of [PRB 90, 014518 (2014)] ):
http://epw.org.uk/Documentation/Documentation

In the panel (b) of the figure, the author decomposed the total Eliashberg spectrum into different contributions from intra-band and inter-band scattering. I would like to know how to do that, since I can not find the corresponding answer from the tutorials of EPW.

Can anyone help me?

Best regards!

Hello hellolori,

Roxana (the author of the paper) is on easter holiday. She might reply when she come back.

However I think there are no easy way to get this. You have to go in the code and probably select the range of band you want to add to get the total contribution.

Best,
Samuel

Hi,

To obtain the plot shown in the paper I modified the code to consider the states within a radius around the Gamma-point as being NFE bands and the bands outside the radius as being pi-bands. For example, to extract the pi-pi interaction, the e-ph matrix elements g2 around the Gamma-point were made zero (inside the defined radius).

Hope this helps.

Best,
Roxana

Thank you all of you very much, I think I have work out the problem.