Deformation potential

[mmkhatami]

Dear all,

I need deformation potential values for every phonon branch in high symmetry points. I was wondering if there is any possible way to calculate it.
I have seen in the Phonon user guide that the ph.x can calculate it but I couldn't find them in output files. Also in "Elec-?ph. and ph.-?ph. coupling in semiconductors and bismuth, theoretical approaches" the document of QE developers meeting 2016, the CALC_ISDP option in the subroutine calc_isdp.f90 can derive them too which I couldn't find the subroutine and I think it has not been implemented in QE yet and I was wondering if there is any test version of it.

Yours,
Mohammad Mahdi Khatami
Tarbiat Modares University

[sponce]

Dear Mohammad,

It is not natively implemented in EPW.
Probably the best for you is to ask on the QE mailing list.

Best wishes,
Samuel