Theory of high-Tc superconductors within a realistic Anderson lattice model

A realistic Anderson lattice Hamiltonian for La2-xSrxCuO4 is derived from an extensive tight-binding parametrization of ab initio band structure. A solution of the Hamiltonian by the 1N expansion technique gives remarkably good agreement with the data on thermodynamic, transport, and critical properties, e.g., the location of the holes on the oxygen and saturation of Tc at 15% doping are reproduced. © 1988 The American Physical Society.