Dear all QE users and developers,<div><br></div><div>While using PAW pseudopotential, i got the error "NEGATIVE dr2". </div><div><br></div><div>Commenting out the line (used to check the error in energy in scf cycle ) as suggested in </div>
<div><a href="http://www.democritos.it/pipermail/pw_forum/2011-July/021150.html">http://www.democritos.it/pipermail/pw_forum/2011-July/021150.html</a>, i got the convergence.</div><div><br></div><div>Is it a trustworthy/robust solution to avoid the error ? </div>
<div>or do i have to generate new PAW potential to correctly represent the core region density?</div><div><br></div><div>With Regards,</div><div>sonu</div><div><br></div><div>==========================================<br>
Sonu Kumar<br>Phd Student,Physics Department<br>Indian Institute of Technology ,Delhi-110016, India<br>web:-<a href="http://www.iitd.ac.in/" target="_blank">http://www.iitd.ac.in/</a><br>
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