Hi, all<div><br></div><div>In the article <i>Notes on Pseudopotential Generation by </i><span style="color:rgb(102,102,102);font-family:arial,sans-serif;line-height:20px;background-color:rgb(255,255,255)"><b>P Giannozzi</b></span>, there is a sentence: Curiously enough, the pseudization radius for the core correction, which in principle should be as small as possible, seems to improve things if pushed slightly outwards (try rcore=2.0).<div>
I really don not know how to understand "<b>push slightly outwards</b>"?</div><div>In addition, <b>why</b> to try rcore=2.0 but not other values?</div><div><br></div><div>Best regards!<br><br>--<br>------------------------------------------------------------------------------------------------------------<br>
Yue-Wen FANG, PhD candidate<br>Key Laboratory of Polar Materials and Devices, Ministry of Education<br>East China Normal University <br>Phone: +86-18321726131<br>I will persist until I succeed!<br><br></div></div>