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electron phonon coupling strength

Posted: Fri Nov 08, 2019 5:42 pm
by Aiswarya Samal
Dear Abinit Users
Kindly suggest me how to find out the electron-phonon coupling strength after the anaddb run. We are getting many output files .From which output file I can get the electron-phonon coupling strength.

Re: electron phonon coupling strength

Posted: Thu Dec 26, 2019 3:09 pm
by mverstra
Hello,

the easiest is in the log and main output file, if you look for the lambda averaged isotropic ep coupling strength. The A2F files contain the Eliashberg spectral function, which is frequency resolved, to show which phonons contribute to the epc, and lambda is the first inverse momend of a2F. Check the tutorial on epc, and there are many textbooks on the topic such as Grimvall and the RevModPhys by Giustino.