List of hybrid functionals

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Revision as of 21:43, 15 February 2023 by Ftran (talk | contribs)

A certain number of hybrid functionals are available in VASP, and furthermore if VASP is compiled with the library of exchange-correlation functionals Libxc, then most of the existing hybrid functionals can be used[1]. Examples of INCAR files are shown below.

Range-separated hybrid functionals

LHFCALC = .TRUE.
GGA = PE
HFSCREEN = 0.2
with the default values AEXX=0.25, AGGAX=1-AEXX=0.75, AGGAC=1.0 and ALDAC=1.0, and using the PBE POTCAR files.

LHFCALC = .TRUE.
GGA = PE
HFSCREEN = 0.3
with the default values AEXX=0.25, AGGAX=1-AEXX=0.75, AGGAC=1.0 and ALDAC=1.0, and using the PBE POTCAR files.

LHFCALC = .TRUE.
GGA = PS
HFSCREEN = 0.2
with the default values AEXX=0.25, AGGAX=1-AEXX=0.75, AGGAC=1.0 and ALDAC=1.0, and using the PBE POTCAR files.

Unscreened hybrid functionals

LHFCALC = .TRUE.
GGA = PE
with the default values AEXX=0.25, AGGAX=1-AEXX=0.75, AGGAC=1.0 and ALDAC=1.0, and using the PBE POTCAR files.
  • B3LYP[10] with VWN3 (or VWN5) for LDA correlation
LHFCALC = .TRUE. 
GGA     = B3 (or B5)
AEXX    = 0.2
AGGAX   = 0.72 
AGGAC   = 0.81 
ALDAC   = 0.19
and using the PBE POTCAR files.
LHFCALC = .TRUE.
GGA = LIBXC
LIBXC1 = 401 (or HYB_GGA_XC_B3PW91)
AEXX = 0.2
and using the PBE POTCAR files.
LHFCALC = .TRUE.
GGA = LIBXC
LIBXC1 = 412 (or HYB_GGA_XC_B1WC)
AEXX = 0.16
and using the PBE POTCAR files.
  • Hartree-Fock
LHFCALC = .TRUE. 
AEXX    = 1.0
ALDAC   = 0.0 
AGGAC   = 0.0
with the default values AGGAX=1-AEXX=0.0, and using the PBE POTCAR files.

Related tags and articles

AEXX, ALDAX, ALDAC, AGGAX, AGGAC, AMGGAX, AMGGAC, LHFCALC, HFSCREEN, GGA, METAGGA

References