Zoology of charge-orders in the electron-doped cuprates

Since the discovery of unconventional superconductivity in 1986, the high-T_c cuprates have attracted many scientists to study these strongly correlated materials. Besides the superconducting dome, the cuprates feature a plethora of other phases involving spin- and charge-order that have gotten into focus in order to decipher the superconducting pairing mechanism. Based on the one-band Hubbard model, we analyze combined spin- and charge order in the electron-doped cuprates by means of Gaussian fluctuations around an antiferromagnetic slave-boson mean-field parent state. We detect nesting-induced charge-order in good agreement with experimental RXS data in the electron-doped cuprate Nd_2-xCe_xCuO₄, and identify another type of charge-order for which experimental evidence is yet lacking.