<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Dear Purinut,<div class=""><div class=""><div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div><br class=""></div></div></div></div></div></div></div><div><blockquote type="cite" class=""><div class=""><div class="ContentPasted4 elementToProof" style="font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);"></div><div class="elementToProof" style="font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);"><span class="ContentPasted0" style="background-color: rgb(255, 255, 255); display: inline !important;">but I cannot find the NCPP files. I would like to ask 1) Where can I get the NCPP files? 2) Is there a way to calculate the dielectric function of the material that applied PAW pseudopotential?</span></div></div></blockquote><br class=""></div><div>1.) Did you try looking here <a href="http://www.pseudo-dojo.org/" class="">http://www.pseudo-dojo.org/</a> ? You should be able to find what you need.</div><div>2.) If it can be of any help, you can try looking if PAW is implemented in the TDDFT package and compute it from there. </div><div><br class=""></div><div>HTH,</div><div>Lorenzo </div><br class=""></div><div class=""><div class="">********************************</div><div class="">Lorenzo Bastonero</div><div class=""><br class=""></div><div class="">PhD Student</div><div class="">U Bremen Excellence Chair,<br class="">Bremen Center for Computational Materials Science,<br class="">and MAPEX Center for Materials and Processes</div><div class=""><br class=""></div><div class="">University of Bremen</div><div class="">Faculty of Production Engineering</div><div class="">TAB-Building, Room 3.32</div><div class="">Am Fallturm 1</div><div class="">28359 Bremen, DE</div><br class="Apple-interchange-newline"><a href="http://www.hmi.uni-bremen.de/" class="">http://www.hmi.uni-bremen.de/</a></div></body></html>