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
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