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<body class='hmmessage'><div dir='ltr'><div> <span style="font-size: 12pt;">Dear pwscf users,</span><div dir="ltr">
<p class="ecxp2"><br></p>
<p class="ecxp1">I want to know the unit of one quantity calculated by ph.x.</p>
<p class="ecxp1">It is electron-phonon matrix elements saved in $prefix.dvscf_q$qnum files.</p>
<p class="ecxp1">It is related to the derivation of energy with respect to atomic displacements.  </p>
<p class="ecxp2"><br></p>
<p class="ecxp1">Best regards.</p>
<p class="ecxp1">Riping Wang</p>
<p class="ecxp1">2015.8.29</p><br><br><pre style="color:rgb(51, 51, 51);orphans:2;text-align:-webkit-auto;widows:2;background-color:rgb(255, 255, 255);"><div style="font-family:'Lucida Grande';white-space:normal;word-wrap:break-word;"><div style="word-wrap:break-word;"><div style="word-wrap:break-word;"><div style="word-wrap:break-word;"><pre style=""><font color="#0044fe"><font face="Helvetica"><span style="font-size:13.913043975830078px;white-space:normal;"><br></span></font></font></pre><pre style=""><font color="#0044fe"><font face="Helvetica"><span style="font-size:13.913043975830078px;white-space:normal;"><br></span></font></font></pre><pre style=""><font color="#0044fe"><font face="Helvetica"><span style="font-size:13.913043975830078px;white-space:normal;">*****************************************</span></font><span style="font-size:13.913043975830078px;white-space:normal;font-family:Helvetica;">************</span><span style="font-size:13.913043975830078px;white-space:normal;font-family:Helvetica;">************</span></font></pre><pre style=""><span lang="EN-US" style="font-size:13.913043975830078px;white-space:normal;"><font face="Helvetica" color="#0044fe">Mr. Riping Wang (ÍôÈÕƽ)</font></span></pre><pre style=""><font face="Helvetica" color="#0044fe"><span lang="EN-US" style="font-size:13.913043975830078px;white-space:normal;">Postdoc<br>Beijing Computational Science Research Center<br></span></font><div style="font-family:'Lucida Grande', 'Lucida Sans Unicode', sans-serif;white-space:normal;font-size:15px;"><font face="Times New Roman" color="#0044fe">Zhongguancun Software Park II, No. 10 Dongbeiwang West Road, </font></div><div style="font-family:'Lucida Grande', 'Lucida Sans Unicode', sans-serif;white-space:normal;font-size:15px;"><font color="#0044fe"><font face="Times New Roman">Haidian District, </font><font face="Helvetica"><span lang="EN-US" style="font-size:13.913043975830078px;">Beijing, </span></font><span style="font-size:13.913043975830078px;font-family:Helvetica;">100094,</span><span style="font-size:13.913043975830078px;font-family:Helvetica;"> China </span></font></div></pre><pre style=""><font color="#0044fe"><font face="Helvetica"><span lang="EN-US" style="font-size:13.913043975830078px;white-space:normal;">TEL: </span></font><span lang="EN-US" style="font-family:Helvetica;font-size:13.913043975830078px;white-space:normal;">(</span><span lang="EN-US" style="font-family:Helvetica;font-size:13.913043975830078px;white-space:normal;">+86)13693675973 </span></font></pre><pre style=""><span lang="EN-US" style="font-size:13.913043975830078px;white-space:normal;"><font color="#0044fe"><pre style="font-size:medium;"><span style="font-family:Helvetica;font-size:13.913043975830078px;white-space:normal;">Email: </span><span style="font-family:Helvetica;font-size:13.913043975830078px;white-space:normal;">wangriping@outlook.com  </span></pre><font face="Helvetica">Website: www.csrc.cn</font></font></span></pre></div></div></div></div><font color="#0044fe"><span style="font-family:'Lucida Grande';font-size:14px;white-space:normal;"><font face="Helvetica">********************</font></span><span style="font-family:'Lucida Grande';font-size:14px;white-space:normal;"><font face="Helvetica">*********************</font></span><span style="font-size:13.913043975830078px;white-space:normal;font-family:Helvetica;">************</span><span style="font-size:13.913043975830078px;white-space:normal;font-family:Helvetica;">************</span></font></pre>                                    </div></div><style><!--
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