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Fermi Energy


On 4/20/2015 8:36 AM, Fecher, Gerhard wrote:
The Fermi energy is by definition the energy of the highest occupied state at 0K
... and it is important !

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DEEP THOUGHT in D. Adams; Hitchhikers Guide to the Galaxy:
"I think the problem, to be quite honest with you,
is that you have never actually known what the question is."

Dr. Gerhard H. Fecher
Institut of Inorganic and Analytical Chemistry
Johannes Gutenberg - University
55099 Mainz
Max Planck Institute for Chemical Physics of Solids
01187 Dresden
[] im Auftrag von delamora 
Gesendet: Montag, 20. April 2015 15:48
An: A Mailing list for WIEN2k users
Betreff: Re: [Wien] Fermi level

As far as I know, the zero of the Fermi Energy is not important, but once it is 
taken then all the energies of the calculation are relative to this value.
The Ecut value is relative to the ionization energy of the individual atoms.

De: <> 
en nombre de Ридный Ярослав Максимович <>
Enviado: lunes, 20 de abril de 2015 07:46 a. m.
Asunto: [Wien] Fermi level

Hello, I have calculated the Fermi level
:FER  : F E R M I - ENERGY(TETRAH.M.)=   0.78830
Fermi level = 0,7883 Ry
Relative to what is taken to zero in the program?

And another question
When we write Ecut=-7.0
We cut the levels below -7.0 Ry relative to some zero.
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