[Pw_forum] calculating lambda for a phonon band structure with imaginary frequencies

Guoying Gao gaoguoying at gmail.com
Sun Dec 9 12:17:11 CET 2007

Dear everyone,
      I intend to do the electron-phonon coupling calculation.
However, I found some  imaginary frequencies in the phonon band
So is it reasonable to calculate the lambda for the qpoints with
imaginary frequencies and why?
Thanks very much!
National Lab of Superhard Materials, JiLin Univ, P. R. China

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