<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div style="RIGHT: auto">Dear Prof. Blaha,</div>
<div style="RIGHT: auto">I use WIEN2K code for calcula<VAR id=yui-ie-cursor></VAR>ting electron density at the nucleus to determine the change of electron capture nuclear decay rate in different environments. WIEN2K uses a point nucleus and I use the value of the electron density at the first mesh point as given by the code. I am interested to know the effect of the finite size of the nucleus on the electron density at the nucleus. Since Dirac wavefunction of s-electron becomes infinity at r=0 for a point nucleus, the effect of considering a finite nucleus could be significant for calculating the electron density at the nucleus. </div>
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<div style="RIGHT: auto">I was wondering if the effect of a finite nucleus might be included in an upcoming version of WIEN2K. Please let me know if there is any such plan. </div>
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<div style="RIGHT: auto">With best regards</div>
<div style="RIGHT: auto">Amlan Ray</div>
<div style="RIGHT: auto">Variable Energy Cyclotron Center</div>
<div style="RIGHT: auto">Kolkata, India</div></div></body></html>