[QE-users] info about eigenvectors with matdyn

[patrizio.graziosi at cnr.it]

Hello everybody,

I did a test on Si and got for example the following optical eigenvector:
      freq (    4) =      15.673472 [THz] =     522.810745 [cm-1]
  (  0.000000   0.000000     0.707107   0.000000     0.000000   0.000000   )
  (  0.000000   0.000000    -0.707107   0.000000     0.000000   0.000000   )

Can you tell me if the coordinates of the eigenvectors are cartesian  
or crystal, please? Apologize if the question is trivial, I'd daresay  
they're cartesian but I couldn't find the info in any doc and I am not  
sure about...


Thanks in advance
Patrizio


-- 

Patrizio Graziosi, PhD

Research Scientist

CNR - ISMN
Institute for the Study of Nanostructured Materials