Spin magnetic susceptibility in the two-layer Hubbard model
  The two-layer Hubbard model is studied by using the composite operator method. Magnetic properties of the model in the normal state are analyzed by studying the uniform static spin magnetic susceptibility as a function of doping and temperature. The relevance of the model to describe the physical behavior of two-layered cuprate high-$T_{c}$ superconductors is discussed. 
Ferdinando Mancini, Volodymyr Turkowski