<div dir="ltr"><div>You can compute only effective charges with linear response. Once you have effective charges and phonon modes, you can compute the IR cross sections<br><br></div>Paolo<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Nov 10, 2015 at 9:41 AM, yin li <span dir="ltr"><<a href="mailto:liyincumt@gmail.com" target="_blank">liyincumt@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Dear QE community,<div><br></div><div>I am looking for a way to obtain IR spectra using finite displacement in QE? I have used phonopy to generate the supercell and atomic displacements. After pwscf calculation, phonopy gave me a force set file. I wonder if it is possible to explore this file to calculate IR spectra of my crystal?</div><div><br></div><div>Thank you very much!</div><div><br></div><div>Best Regards,</div><div>Yin<span class="HOEnZb"><font color="#888888"><br clear="all"><div><br></div>-- <br><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><font size="2"><hr style="width:210px;min-height:1px" size="1" align="left" color="#b5c4df">
</font><span style="color:rgb(0,0,0);font-family:verdana;font-size:15px;line-height:22px">Dr. Yin Li </span><br style="color:rgb(0,0,0);font-family:verdana;font-size:15px;line-height:22px"><span style="color:rgb(0,0,0);font-family:verdana;font-size:15px;line-height:22px">Department of Biophysics,Medical School, University of Pecs,</span><br style="color:rgb(0,0,0);font-family:verdana;font-size:15px;line-height:22px"><span style="color:rgb(0,0,0);font-family:verdana;font-size:15px;line-height:22px">No.12 Szigeti Street, Pecs, H-7624, HUNGARY</span><br style="color:rgb(0,0,0);font-family:verdana;font-size:15px;line-height:22px"><span style="color:rgb(0,0,0);font-family:verdana;font-size:15px;line-height:22px">Phone: <a href="tel:%2B36-72-535271" value="+3672535271" target="_blank">+36-72-535271</a>/36271</span><font size="2"><br></font></div></div></div></div></div></div></div>
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