upward

Delta SCF method

T Baruah, M Olguin, R R Zope, Charge transfer excited state energies by perturbative delta self consistent field method, JCP 137, 084316 (2012)

T Baruah, M R Pederson, DFT calculations on charge-transfer states of a carotenoid-porphyrin-C60 molecular triad, JCTC 5, 834 (2009)

C Massobrio, A Pasquarello, R Car, Interpretation of photoelectron spectra in Cun- clusters including thermal and final-state effects: The case of Cu7-, PRB 54, 8913 (1996)