<br />
<br />
On Wed, 25 Jan 2012 16:33:51 +0530 wrote<br />
>It should represent an integral over the BZ (of course represented as finite sum on<br />
<br />
a grid of k-points as specified in case.klist) of the occupied band states (up to EF),<br />
<br />
i.e. without core (but including "semicore").<br />
<br />
<br />
<br />
Therefore it also may depend not only on the k-mesh, but also on the "Fermi"-method.<br />
<br />
<br />
<br />
It is in Ry and with respect to the "average coulomb potential in the interstitial",<br />
<br />
which defines our energy-zero, but which otherwise does NOT have any physical meaning.<br />
<br />
<br />
<br />
Thus this quantity is usually of no particular interest (other than being part of E-tot),<br />
<br />
but may be used eg. when using the "force-theorem" in non-scf SO calculations using<br />
<br />
different magnetization directions.<br />
<br />
<br />
<br />
Maybe you can also get some meaningfull comparison of these "band-energies", when you<br />
<br />
can bring them to some common E-zero in two calculations, e.g. referring to some common<br />
<br />
core-energy,....<br />
<br />
<br />
<br />
<br />
<br />
Am 25.01.2012 11:16, schrieb Jyoti:<br />
<br />
> Dear Prof. Blaha and dear WIEN users,<br />
<br />
><br />
<br />
> I have a few questions regarding the ‘Sum of Eigenvalues’ parameter given the scf output of the WIEN2K program. I will be highly obliged to get the reply to these questions.<br />
<br />
> 1. This ‘sum of eigenvalues’ implies sum over what part of bandstructure; the one given in klist or over some other part of bandstructure also or over the entire bandstructure<br />
<br />
> (and if so which is that?).<br />
<br />
> 2. What is the zero point with respect to which this sum is defined?<br />
<br />
> 3. Presumably it also is in Rydbergs.<br />
<br />
> I thank you a lot for your attention and time to go through this mail and for kindly providing me the reply.<br />
<br />
><br />
<br />
> Thanking You,<br />
<br />
> Yours Sincerely,<br />
<br />
> Jyoti<br />
<br />
<br />
<br />
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-- <br />
<br />
<br />
<br />
P.Blaha<br />
<br />
--------------------------------------------------------------------------<br />
<br />
Peter BLAHA, Inst.f. Materials Chemistry, TU Vienna, A-1060 Vienna<br />
<br />
Phone: +43-1-58801-165300 FAX: +43-1-58801-165982<br />
<br />
Email: blaha@theochem.tuwien.ac.at WWW: http://info.tuwien.ac.at/theochem/<br />
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