Dear wang, <br>you can find the vibration modes in *.dyn files, and it shows the displacement (complex number) at a certain frequency. Then you<br>can use dynmat.x commond to get *axsf to show its movement. <br><br>by plgong<br>HeFei, ISSP, CAS<p>在2014-12-18 00:13:53，plgong<a href="mailto:plgong@theory.issp.ac.cn" target="_blank">plgong@theory.issp.ac.cn</a>写道：</p><blockquote name="replyContent" style="padding-left: 1ex;margin: 0px 0px 0px 0.8ex;border-left: 1px solid #ccc;"><div><div dir="ltr"><div><div><div><div><div>Hi everyone,<br><br></div>I did a phonon calculation and get the frequecies of different modes, however, I am not sure where to find the eigenvectors of these frequencies? I saw a file named data-file in the outdir which has the following contents and I don't know if DISPLACEMENT_PATTERN contains the eigenvectors of the vibrational modes? (q=0 for this case):<br><br><?xml version="1.0"?><br><?iotk version="1.2.0"?><br><?iotk file_version="1.0"?><br><?iotk binary="F"?><br><?iotk qe_syntax="F"?><br><Root><br>  <TENSOR_INFO><br>    <STOPPED_IN type="character" size="1" len="10"><br>dynmatrix.<br>    </STOPPED_IN><br>    <RECOVER_CODE type="integer" size="1"><br>        30<br>    </RECOVER_CODE><br>    <QPOINT_NUMBER type="integer" size="1"><br>         1<br>    </QPOINT_NUMBER><br>    <QPOINT_GROUP_RANK type="integer" size="1"><br>        12<br>    </QPOINT_GROUP_RANK><br>    <NUMBER_IRR_REP type="integer" size="1"><br>         4<br>    </NUMBER_IRR_REP><br>    <NUMBER_OF_PERTURBATIONS type="integer" size="1"><br>         2<br>    </NUMBER_OF_PERTURBATIONS><br>    <SYMMETRY_TYPE type="character" size="1" len="15"><br>E'             <br>    </SYMMETRY_TYPE><br>    <DISPLACEMENT_PATTERN type="complex" size="6"><br>-9.999998516900670E-001,-0.000000000000000E+000<br> 5.446281707139344E-004, 0.000000000000000E+000<br>-1.415585956251649E-017,-0.000000000000000E+000<br>-0.000000000000000E+000, 0.000000000000000E+000<br>-0.000000000000000E+000, 0.000000000000000E+000<br>-0.000000000000000E+000, 0.000000000000000E+000<br>    </DISPLACEMENT_PATTERN><br>    <DISPLACEMENT_PATTERN type="complex" size="6"><br>-5.446281707138789E-004,-0.000000000000000E+000<br>-9.999998516900669E-001,-0.000000000000000E+000<br>-1.363633827524650E-017,-0.000000000000000E+000<br> 0.000000000000000E+000,-0.000000000000000E+000<br> 0.000000000000000E+000,-0.000000000000000E+000<br> 0.000000000000000E+000,-0.000000000000000E+000<br>    </DISPLACEMENT_PATTERN><br>    <NUMBER_OF_PERTURBATIONS type="integer" size="1"><br>         2<br>    </NUMBER_OF_PERTURBATIONS><br>    <SYMMETRY_TYPE type="character" size="1" len="15"><br>E'            <br>......<br>.....<br><br><br></div>Thank you for any response.<br><br></div>Jing Wang<br></div>Dept. of Physics,<br></div>Georgia Tech, GA, USA<br></div>
</div></blockquote><br><br><br>