<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">Dear all, <br><br> I wanted to use the pseudopotential "O.pw91-van_ak.UPF" downloaded from the QE espresso web site.. But there is something strange: In the human-readable section<br> of the file, there are two unusual things:<br><br>1) The Rcut is set to 10.0000000. Is it not too high? According to me, this number should be between 0..90 and 1.20<br>2) The pricipal quantum number of the 2S state is set to 2, <br> and I think it should be 1.<br><br>I would like you to shed more light on this issue.<br>A comment from somebody who has already use this pseudopotential is welcomed.<br><br>Also, I would like you to confirm, as Lorenzo <br>wrote some days ago, that a pseudowavefunction with <br>opposite sign of that of all electron wavefunction is still<br>valid<br><br>Thanks for your reaction<br><br><br>********************<br>Bertrand
SITAMTZE<br>PhD Student<br>Department of physics<br>University of Yaoundé I-Cameroon<br>************************<br><br></td></tr></table><br>