[Pw_forum] Phonon DOS problem

[Jiayi Yan]

Dear all,

I was calculating the phonon DOS of a 4-atom triclinic cell. I got the
force constant file (nb222.fc) from q2r.x, as attached. But when I was
trying to use matdyn.x to get phonon DOS, an error message showed up:

forrtl: severe (64): input conversion error, unit 1, file (...my
filepath...)/nb222.fc

This didn't happen for my 1-atom BCC cell calculations. Does this problem
have to do with number of atoms or cell shape? Your ideas are appreciated.
Thank you.

 Sincerely,

Jiayi Yan

-- 
Jiayi Yan

 Graduate student, Dept. of Materials Science & Engineering
Northwestern University
2220 Campus Dr, Cook Hall 2032
Evanston, Illinois 60208-3108, U.S.A
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