Hello,<br>I have few questions, It would be kind of you could answer:<br>1- How can I get the polarization vector correspond to each eigenvalue( phonon frequency). I know when I run ph.x for each q-vector, I get the phonon frequencies and the corresponding polarization vectors for each atom. But I want the polarization vectors also when I run matdyn.x, because I am calculating the frequencies for a large number of q-vectors ans it is not practical to run ph.x for a large mesh of q-vectors.<br>
<br>2- Anyone could explain to me the format of the force constants file *.fc<br><br>Thank you very much. <br>_______________________________<br>IYAD I. AL-QASIR, PhD<br>Research Associate <br>ORNL<br><br>