<br><font size=2 face="sans-serif">Dear Dr. Giannozzi and Dr. Marzari,</font>
<br><font size=2 face="sans-serif">Thanks for the references!</font>
<br><font size=2 face="sans-serif">Best regards,</font>
<br><font size=2 face="sans-serif">Ravi<br>
<br>
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Ravinder Abrol, Ph. D.<br>
25-143, Department of Physical Sciences<br>
IBM Thomas J. Watson Research Center<br>
Yorktown Heights, NY 10598<br>
Phone: 914-945-1617<br>
Email: rabrol@us.ibm.com<br>
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<td width=40%><font size=1 face="sans-serif"><b>Paolo Giannozzi <giannozz@nest.sns.it></b>
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<br><font size=1 face="sans-serif">Sent by: pw_forum-admin@pwscf.org</font>
<p><font size=1 face="sans-serif">10/23/2004 09:37 AM</font>
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<div align=right><font size=1 face="sans-serif">To</font></div>
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<div align=right><font size=1 face="sans-serif">Subject</font></div>
<td valign=top><font size=1 face="sans-serif">Re: [Pw_forum] Efermi error?</font></table>
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<br><font size=2><tt>On Saturday 23 October 2004 06:50, Ravinder Abrol
wrote:<br>
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> Thanks very much for the suggestion. It worked. Is there a place/reference<br>
> where I can read more about this?<br>
<br>
Gaussian broadening:<br>
Methfessel, M., and A. Paxton, 1989,<br>
Phys. Rev. B 40, 3616<br>
Tetrahedron method:<br>
P. E. Bloechl, O. Jepsen and O. K. Andersen, 1994<br>
Phys. Rev. B 49, 16223<br>
Cold Smearing:<br>
Marzari, N., D. Vanderbilt, A. De Vita, and
M. C. Payne, 1999,<br>
Phys. Rev. Lett. 82, 3296.<br>
The implementation is contained in a few simple routines in PW/ <br>
that should be easily readable:<br>
gweights.f90 (calculates gaussian weights)<br>
efermig.f90 (calculates Fermi energy with gaussian
weights)<br>
w0gauss.f90 w1gauss.f90 wgauss.f90 (auxiliary functions)<br>
tweights.f90 (calculates weights with tetrahedra)<br>
efermit.f90 (calculates Fermi energy with tetrahedra)<br>
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Paolo <br>
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-- <br>
Paolo Giannozzi e-mail: giannozz@nest.sns.it<br>
Scuola Normale Superiore Phone: +39/050-509876, Fax:-563513
<br>
Piazza dei Cavalieri 7 I-56126 Pisa, Italy<br>
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