[Wien] negative value of U in solids

[Michael Sluydts]

Hello Sandeep,

A negative value of U for instance occurs in Ge.

I was given this article before to explain this behavior:

http://www.sbfisica.org.br/bjp/files/v36_286.pdf

Note that the effective U = U-J.


Best regards,

Michael Sluydts

sandeep schreef op 8/07/2015 om 18:49:
> Dear users!
> It may not be appropriate to post this question here,
> "Did any one encounter negative value of U in solids (compounds) ? if 
> so explain its origin and quote related concepts. Kindly explain the 
> origin and experimental supports if any?"
>
>
>
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-- 
ir. Michael Sluydts
Center for Molecular Modeling
Ghent University
Technologiepark 903
9052 Zwijnaarde, Belgium
tel. +32 (0)9 264 66 19
https://molmod.ugent.be

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