FUNCTIONAL NAME: GPDE4
This is a CORRELATION Density Functional Theory functional
FUNCTIONAL FAMILY: GGA
DESCRIPTION: RATIONAL$^{p}$ by Lehtomaki and Lopez-Acevedo (by default $p=3/2$, $C_{2}=0.7687$). AI functional.
REFERENCES
J. Lehtomäki and O. Lopez-Acevedo., Phys. Rev. B 100, 165111 (2019)
DOI: 10.1103/PhysRevB.100.165111