Does eigenvector (.evec) coordinate bases are cartesian?

[squirmingToad]

Hello, ALAMODE developers & users.

I wish to know whether eigenvector coordinate bases are cartesian or lattice (a, b, c).

From .evec file, for each kpoint & phonon branch, eigenvectors are printed out.

I figured out that the first column is a real part and the second column is an imaginary part.

And values can be grouped by 3 (in rows) as a polarization vector for each atomic basis.

But not quite sure whether vectors are expressed based on cartesian or lattice.

Thank you!

# Eigenvalues and eigenvectors for each phonon modes below:

## kpoint       1 :    0.000000e+00   0.000000e+00   0.000000e+00
### mode        1 :    1.000000e-30
  -0.000000e+00   0.000000e+00
  -0.000000e+00   0.000000e+00
  -7.071068e-01  -0.000000e+00
  -0.000000e+00   0.000000e+00
  -0.000000e+00  -0.000000e+00
  -7.071068e-01  -0.000000e+00

[ttadano]

They are in the Cartesian basis.

[squirmingToad]

Thank you, Dr. Tadano!