<div dir="ltr"><div><div>Dear all,<br><br></div>I successfully completed the phonon dispersion calculations for tetragonal structure (insulator) by following example06. <br>Now, I want to add LO-TO splitting to plot the phonon dispersion. Can any one please suggest me for necessary flags added to ph.x, q2r.x and matdyn.x inputs.<br>
<br></div><div>Here I am adding my ips ..Thanks in advance<br><b>For phonons</b><br>phonons at Full<br> &inputph<br> prefix='$NAME',<br> fildyn='$NAME.dyn',<br> tr2_ph=1.0d-16,<br> epsil=.true.<br>
amass(1)=18.99840,<br> amass(2)=24.305,<br> outdir='./tmp'<br> ldisp=.true.,<br> nq1=4, nq2=4, nq3=4<br> /<br></div><div><b>q2r.x</b><br>&input<br> fildyn='$NAME.dyn', zasr='simple',flfrc='$NAME2444_with_ASR.fc'<br>
</div><div><b>matdy.x</b><br> &input<br> amass(1)=18.998,amass(2)=24.305, asr='simple',<br> flfrc='$NAME444_with_ASR.fc', flfrq='$NAME_with_ASR.freq'<br><br></div><div>With regards<br></div>
<div>S. Applakondaiah<br></div><div>PhD student<br></div><div>University of Hyderabd<br></div><div><br></div><div><br><br></div><div><br><br></div></div>