vosko Subroutine

public subroutine vosko(exc, fpirho, vxc, ijend, ijd)

Calculate the spin-polarized exchange-correlation potential and the spin-polarized exchange-correlation energy from ceperley-alder ( parametrization of vosko, wilk and nusair ) ( m. manninen ) Use as input the density generated on an angular mesh (see subroutine vxclm). fpirho(.,1) contains the charge density times $4\pi$ and fpirho(.,2) the spin density times $4\pi$. Then the ex.-cor. potential and the ex.-cor. energy on those mesh points is calculated . The spin-down potential is stored in vxc(.,1).

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=dp),			dimension(*)	::	exc	xc-energy
real(kind=dp),	intent(inout),		dimension(ijd, 2)	::	fpirho	Charge and spin density times $4\pi$
real(kind=dp),	intent(out),		dimension(ijd, 2)	::	vxc	spin dependent xc-poteantial
integer,	intent(in)			::	ijend
integer,	intent(in)			::	ijd