RI-JK

If the keyword $rik is found in the control file, RIDFT performs a Hartree-Fock-SCF calculation using the RI-approximation for both Coulomb and HF-exchange (efficient for large basis sets). For this purpose needed (apart from $ricore):

$jkbas file=auxbasis

Cross reference for the file specifying the JK-auxiliary basis as referenced in $atoms. This group is created by the rijk menu in DEFINE.