[Phonopy-users] Whether the eigenvector in the band.yaml is equal to the eα?

[<ji...@ma...>]

Dear Prof. Atsushi Togo,

 

I am writing this email to ask for your help. 

 

I use the phonopy to calculate the phonon and its eigenvector. However, I don't know whether the eigenvector in the band.yaml is equal to the eα (eβ) denoted in the Dynamical matrix part.  Some tutorials treat the eα as the product of the eigenvector in the band.yaml and the 1/M1/2.  Which one is right? 

 

And the axis of the eigenvector in the band.yaml confused me as well. The eigenvector in the band.yaml is along the xyz axis or along the a,b,c axis?




Jiang