Electron phonon coupling convergence

[dinesh169]

Dear Dr. Samuel Ponc,

Thank you very much for your reply. Could you please comment on the humps appearing in the Imaginary part of self-energy?


Best wishes,

[sponce]

Hello,

It very difficult to say like that. Usually it is connected with some feature of the electronic bandstructure there (you need to print the Wannier interpolated one with EPW using the band_plot keyword). You can also look at the phonon bandstructure to see the optical frequency at which phonon emission/absorption will start.

For the IFC thing, the keyword asr_type = 'crystal' works but you need a more recent version than QE6.1

You can take the current devel version of QE+EPW there

https://github.com/QEF/q-e

Best,
Samuel