Nickelate superconductors—a renaissance of the one-band Hubbard model
Nickelate superconductors—a renaissance of the one-band Hubbard model
Following the discovery of superconductivity in the cuprates and the seminal work by Anderson, the theoretical efforts to understand high-temperature superconductivity have been focusing to a large extent on a simple model: the one-band Hubbard model. However, superconducting cuprates need to be doped, and the doped holes go into the …