The ABINIT Users Mailing List ( CLOSED )

[Andrey TITOV <and80t@yahoo.com>]

Dear Colleagues,
I try different plasmon pole models for Si clusters and I have several
questions about models implemented in ABINIT.
1. If I understand well by default the Plasmon pole model of Godby and Needs 
is
used for gwcalctyp=0. Could you provide a reference or a small description of
this model?
2. I would like to try also the models of Faleev. Is the Plasmon pole model of
Godby and Needs used for gwcalctyp=8? Should I provide Plasmon frequency for
Faleev model gwcalctyp=8?
3. The article of Faleev (S.V.Faleev et al., PRL 126406 2004) describes a
self-consistent variant of calculation. However it seems that only one
iteration gives the direct gap in Si (3.34 eV) close to experiment (3.40 eV).
Could this Faleev model be used in the one-shot GW method?
Thank you,
Andrey TITOV.