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Scissor operator

Posted: Fri Mar 10, 2006 4:32 pm
by kefren
Dear VASP support team,

I have read VASP manual and I did not find any mention of a tag in order to make a scissor operator or rigid shift to the band gap.
Is there in VASP any implementation of this shift mentioned above or similar?

Thank you in advance.


Kefren Sanchez

Scissor operator

Posted: Mon Mar 20, 2006 1:02 pm
by admin
there is nothing like a 'scissors operator' (like eg defined by Fritsche et al) in VASP. For some systems with strongly correlated electrons, L(S)DA+U can be applied to increase the band gap width.
please have a look at
http://cms.mpi.univie.ac.at/vasp/vasp/node146.html