Electronic structure of Mott-insulator CaCu3Ti4O12: Photoemission and inverse photoemission study

H. J. Im, M. Iwataki, S. Yamazaki +10

We have performed the photoemission and inverse photoemission experiments to elucidate the origin of Mott insulating states in A-site ordered perovskite CaCu${}_3$Ti${}_4$O${}_{12}$ (CCT…