<html><body><div style="color:; background-color:; font-family:times new roman, new york, times, serif;font-size:12pt"><div><span><br></span></div><div><br></div> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <br>
<meta http-equiv="x-dns-prefetch-control" content="off"><div id="yiv551715428"><div><div style="color:#000;background-color:#fff;font-family:times new roman, new york, times, serif;font-size:12pt;"><div>Dear all</div><div><span id="yiv551715428result_box" class="yiv551715428" lang="en"><span class="yiv551715428hps">I</span> <span class="yiv551715428hps">want</span> <span class="yiv551715428hps">to calculate</span> <span class="yiv551715428hps">the</span> <span class="yiv551715428hps"></span></span>piezoelectric constant for PbTio3.</div><div><span id="yiv551715428result_box" class="yiv551715428" lang="en"><span class="yiv551715428hps">How</span> <span class="yiv551715428hps">do </span><span class="yiv551715428hps"></span><span class="yiv551715428hps">using</span> the QE <span class="yiv551715428hps">code</span><span>?</span><br> <span class="yiv551715428hps">What is</span> <span class="yiv551715428hps">the</span> <span
class="yiv551715428hps">procedure</span><span>?</span><br> <span class="yiv551715428hps">Please</span> <span class="yiv551715428hps">help</span> <span class="yiv551715428hps">me</span><span class="yiv551715428">?</span></span></div><div><br></div><div>best regards</div><div>Alex Mariani</div><div><br></div><div><span class="yiv551715428st">Magadh <i>University</i>
<br></span></div><div><span class="yiv551715428st">Department of <i>Physics</i></span></div></div></div></div><meta http-equiv="x-dns-prefetch-control" content="on"><br><br> </div> </div> </div></body></html>