Dear QE users,
I calculated the phonon dispersion for AgSbTe2. Attached shows the the input file and the result. Phonon dispersion is zero at Gamma point, but is negative at other points. Phonon dispersion at other points should be positive. Could you help to solve this problem? Kind regards, Min School of Mech & Mining Engineering, University of Queensland, Australia.
AgSbTe2
Description: AgSbTe2
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