ALDAX

ALDAX = [real]

Default: ALDAX	= 1.0-AEXX	if LHFCALC=.TRUE.
	= 1.0	if LHFCALC=.FALSE.

Description: ALDAX is a parameter that multiplies the LDA exchange functional or the LDA part of the GGA exchange functional.

ALDAX can be used as the fraction of LDA exchange in a Hartree-Fock/DFT hybrid functional.

Mind:

For versions of VASP prior to 6.4.0, ALDAX was constrained to be equal to 1.0-AEXX. This constraint is lifted since VASP.6.4.0.
ALDAX is implemented for all functionals listed at GGA except AM05.
ALDAX is implemented for the functionals from Libxc (see LIBXC1 for details).

Related tags and articles