Oxygen on-site Coulomb energy in Pr${}_{1.3-x}$La${}_{0.7}$Ce${}_x$CuO${}_4$ and Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ and its relation with Heisenberg exchange

A. Chainani, M. Horio, C. -M. Cheng +20

We study the electronic structure of electron-doped Pr${}_{1.3-x}$La${}_{0.7}$Ce${}_x$CuO${}_4$ (PLCCO ; $T_c$ = 27 K, x = 0.1) and hole-doped Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ (Bi2212 ;…