<div>As far as I know, 'epsi.dat' represents the absorption (imaginary), while 'epsr.dat' the reflectivity (real part).</div><div>you will need to run an SCF calculations first, then use the save files and the dump files from the previous calculations to run epsilon.x calculation. </div><div>I have an example file for bulk ZnO.</div><div>after you obtained the .dat file, you could use then Origin to obtain the plot.</div><br>Geoffrey<div>Peking Univeristy, China<br><blockquote name="replyContent" class="ReferenceQuote" style="padding-left:5px;margin-left:5px;border-left:#b6b6b6 2px solid;margin-right:0">-----原始邮件-----<br>
<b>发件人:</b><span id="rc_from">"Winfred Mulwa" <mulwawinfred@gmail.com></span><br>
<b>发送时间:</b><span id="rc_senttime">2015-04-18 15:36:37 (星期六)</span><br>
<b>收件人:</b> "PWSCF Forum" <pw_forum@pwscf.org><br>
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<b>主题:</b> [Pw_forum] Reflectivity data from epsi.dat or epsr.dat<br><br><div dir="ltr"><div><div><div>Dear all,<br></div>Please somebody to help me. How do i get the reflectivity data<br></div>from epsi.dat or epsr.dat after executing epsilon.x<br></div>Regards<br><div><div><div><div><div class="gmail_signature"><div dir="ltr"><div>Mulwa Winfred.<br>D Phil Student, Computational Material Science Group,<br>University of the Free State - QwaQwa,<br></div>South Africa.<br></div></div>
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