82 citations · 969 across the 61 of their papers we have counts for
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Cooperative effect of phonons and electronic correlations for superconductivity in cobaltates
A. Foussats, A. Greco, M. Bejas +1
We propose that unconventional superconductivity in hydrated sodium cobaltate results from an interplay of electronic correlations and electron-phonon interactions. On…
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…
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…
C-Axis Tunneling Spectra in High-T Superconductors in the Presence of a d Charge-Density Wave
A. Greco, R. Zeyher
The optimally doped and underdoped region of the model at large N (N is the number of spin components) is governed by the competition of d-wave superconductivity (SC) and a d…