[Pw_forum] electron phonon coupling constant with imaginary freq

[Myungchul Jung]

Dear users and developers,

Hello,
I calculated electron phonon coupling(EPC) constant of a superconducting
system.
However, the phonon dispersion shows some imaginary frequencies.
In this case, can I get the reasonable EPC constant?
Please, give any comment.

Thank you, in advance.


Myung-Chul
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