AMGGAC: Difference between revisions

From VASP Wiki
No edit summary
No edit summary
 
(5 intermediate revisions by the same user not shown)
Line 1: Line 1:
{{TAGDEF|AMGGAC|[real]|1.0 if {{TAG|AEXX}}<math>\neq</math>1.0 or 0.0 if {{TAG|LHFCALC}}<math>=</math>.TRUE. and {{TAG|AEXX}}<math>=</math>1.0}}
{{TAGDEF|AMGGAC|[real]}}
{{DEF|AMGGAC|1.0 | if {{TAG|LHFCALC}}<math>=</math>.FALSE. or {{TAG|AEXX}}<math>\neq</math>1.0 | 0.0 | if {{TAG|LHFCALC}}<math>=</math>.TRUE. and {{TAG|AEXX}}<math>=</math>1.0}}


Description: {{TAG|AMGGAC}} is a parameter that multiplies the meta-GGA correlation (available as of VASP.6.4.0).
Description: {{TAG|AMGGAC}} is a parameter that multiplies the meta-GGA correlation functional (available as of VASP.6.4.0).
----
----
{{TAG|AMGGAC}} can be used as the fraction of  meta-GGA correlation in a Hartree-Fock/DFT hybrid functional.
{{NB|mind|Note the difference with respect to {{TAG|AGGAC}}: {{TAG|AMGGAC}} multiplies the whole meta-GGA correlation functional, while {{TAG|AGGAC}} multiplies only the gradient-correction term of a GGA correlation functional.}}


== Related tags and articles ==
== Related tags and articles ==
Line 12: Line 15:
{{TAG|AMGGAX}},
{{TAG|AMGGAX}},
{{TAG|LHFCALC}},
{{TAG|LHFCALC}},
[[list_of_hybrid_functionals|List of hybrid functionals]]
[[list_of_hybrid_functionals|List of hybrid functionals]],
[[Hybrid_functionals:_formalism|Hybrid functionals: formalism]]


{{sc|AMGGAC|Examples|Examples that use this tag}}
{{sc|AMGGAC|Examples|Examples that use this tag}}

Latest revision as of 14:02, 2 July 2024

AMGGAC = [real] 

Default: AMGGAC = 1.0 if LHFCALC.FALSE. or AEXX1.0
= 0.0 if LHFCALC.TRUE. and AEXX1.0

Description: AMGGAC is a parameter that multiplies the meta-GGA correlation functional (available as of VASP.6.4.0).


AMGGAC can be used as the fraction of meta-GGA correlation in a Hartree-Fock/DFT hybrid functional.

Mind: Note the difference with respect to AGGAC: AMGGAC multiplies the whole meta-GGA correlation functional, while AGGAC multiplies only the gradient-correction term of a GGA correlation functional.

Related tags and articles

AEXX, ALDAX, ALDAC, AGGAX, AGGAC, AMGGAX, LHFCALC, List of hybrid functionals, Hybrid functionals: formalism

Examples that use this tag