GGA: Difference between revisions

From VASP Wiki
No edit summary
No edit summary
Line 58: Line 58:
<ref name="perdewzunger1981">[http://journals.aps.org/prb/abstract/10.1103/PhysRevB.23.5048 J. P. Perdew and Alex Zunger, Phys. Rev. B 23, 5048 (1981).]</ref>
<ref name="perdewzunger1981">[http://journals.aps.org/prb/abstract/10.1103/PhysRevB.23.5048 J. P. Perdew and Alex Zunger, Phys. Rev. B 23, 5048 (1981).]</ref>
<ref name="wigner1937">[http://aip.scitation.org/doi/10.1063/1.1750108 E. Wigner, J. Chem. Phys. 5, 726 (1937).]</ref>
<ref name="wigner1937">[http://aip.scitation.org/doi/10.1063/1.1750108 E. Wigner, J. Chem. Phys. 5, 726 (1937).]</ref>
<ref name="hammer1999">http://journals.aps.org/prb/abstract/10.1103/PhysRevB.59.7413 B. Hammer, L. B. Hansen, and J. K. Nørskov, Phys. Rev. B 59, 7413 (1999).]</ref>
<ref name="hammer1999">[http://journals.aps.org/prb/abstract/10.1103/PhysRevB.59.7413 B. Hammer, L. B. Hansen and J. K. Nørskov, Phys. Rev. B 59, 7413 (1999).]</ref>
<ref name="vokso1980">[http://www.nrcresearchpress.com/doi/abs/10.1139/p80-159#.WJLvYmf950w S. H. Vosko, L. Wilk and M. Nusair, Can. J. Phys. 58, 1200 (1980).]</ref>
</references>
</references>
----
----

Revision as of 09:36, 2 February 2017

GGA = 91 | PE | RP | PS | AM
Default: GGA = type of exchange-correlation in accordance with the POTCAR file 

Description: GGA specifies the type of generalized-gradient-approximation one wishes to use.


This tag was added to perform GGA calculation with pseudopotentials generated with conventional LDA reference configurations.

Possible options are:

91 Perdew -Wang 91
PE Perdew-Burke-Ernzerhof
RP revised Perdew-Burke-Ernzerhof
AM AM05[1][2][3]
HL Hendin-Lundqvist[4]
CA Ceperley-Alder[5]
PZ Ceperley-Alder, parametrization of Perdew-Zunger[6]
WI Wigner[7]
RP RPBE with Pade Approximation[8]
VW Vosko-Wilk-Nusair (VWN)
B3 B3LYP (Joachim Paier), where LDA part is with VWN3-correlation
B5 B3LYP (Joachim Paier), where LDA part is with VWN5-correlation
BF BEEF, xc (with libbeef)
CO no exchange-correlation
PS Perdew-Burke-Ernzerhof revised for solids (PBEsol)[9]

The tags AM (AM05) and PS (PBEsol) are only supported by VASP.5.X. The AM05 functional and the PBEsol functional are constructed using different principles, but both aim at a decent description of yellium surface energies. In practice, they yield quite similar results for most materials. Both are available for spin polarized calculations.

References

Cite error: <ref> tag with name "vokso1980" defined in <references> is not used in prior text.


Contents