<div>In pseudo-gen.pdf in atomic_doc by Paolo Giannozzi it is written that</div><div><br></div><div><b>rlderiv( rd) should be of the order of the ionic or covalent radius, and larger than any of the rc ’s (cut of radius for each pseudo wave function)</b></div>
<div><b><br></b></div><div><b>But </b>in some of the examples given in same doc, the used value of rd's are smaller then that of rc's.</div><div><br></div><div>also according to some posts here, the value of rd should be<font class="Apple-style-span" face="arial, helvetica, sans-serif"><font class="Apple-style-span" size="4"> </font><span class="Apple-style-span" style="white-space: pre; "><b>in the order of half a typical bond-bond </b></span></font></div>
<meta http-equiv="content-type" content="text/html; charset=utf-8"><pre><font class="Apple-style-span" face="arial, helvetica, sans-serif"><b>distance. i</b>s it mean that rc's should be less then this value ???</font></pre>
<pre><font class="Apple-style-span" face="arial, helvetica, sans-serif"><br></font></pre><pre><font class="Apple-style-span" face="arial, helvetica, sans-serif">Thanks to all readers.</font></pre><div><br></div>Karandeep<br>
Research Scholar<br>Physics Department,<br>IIT, Delhi<br>