82 citations · 969 across the 61 of their papers we have counts for
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cond-mat.str-el2004★ 38 cited
Large-N expansion based on the Hubbard operator path integral representation and its application to the t-J model II. The case for finite
Adriana Foussats, Andrés Greco
We have introduced a new perturbative approach for model where Hubbard operators are treated as fundamental objects. Using our vertices and propagators we have developed a…
cond-mat.str-el2004★ 12 cited
Spin exchange and superconductivity in a model for two-dimensional quarter-filled systems
Andres Greco, Jaime Merino, Adriana Foussats +1
The effect of antiferromagnetic spin fluctuations on two-dimensional quarter-filled systems is studied theoretically. An effective model on a square lattice which accounts…