46 citations · 120 across the 11 of their papers we have counts for
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Thermodynamics of the 2D Hubbard model
F. Mancini, D. Villani, H. Matsumoto
A theoretical analysis of the thermodynamic response functions of the 2D single-band Hubbard model is realized by means of the composite operator method. It is shown that all the f…
The Hubbard model in the two-pole approximation
A. Avella, F. Mancini, D. Villani +2
The two-dimensional Hubbard model is analyzed in the framework of the two-pole expansion. It is demonstrated that several theoretical approaches, when considered at their lowest le…
Incommensurate spin fluctuations in the two-dimensional t-t'-U model
Adolfo Avella, Ferdinando Mancini, Dario Villani
Magnetic properties of the two-dimensional t-t'-U model are investigated by studying the static spin magnetic susceptibility as a function of momentum for various temperatures. The…
The two-dimensional t-t'-U model as a minimal model for cuprate materials
Adolfo Avella, Ferdinando Mancini, Dario Villani +1
The addition to the Hubbard Hamiltonian of a t' diagonal hopping term, which is considered to be material dependent for high-Tc cuprate superconductors, is generally suggested to o…
Local properties in the two-dimensional t-t'-U model
Adolfo Avella, Ferdinando Mancini, Dario Villani +1
We have studied the t-t'-U model by means of the composite operator method. The effect of the bare diagonal hopping term t' that appears to be material dependent for high-Tc cuprat…
Incommensurate magnetism in cuprate materials
F. Mancini, D. Villani, H. Matsumoto
In the low doping region an incommensurate magnetic phase is observed in LSCO. By means of the composite operator method we show that the single-band 2D Hubbard model describes the…