21 citations · 59 across the 17 of their papers we have counts for
17 papers
Coexistence of superconductivity and charge density wave in a correlated regime
E. J. Calegari, L. C. Prauchner, A. C. Lausmann +1
To investigate the coexistence of superconductivity and charge density wave (CDW) in a correlated regime, we employ the Green's functions formalism, as well as the Hubbard-I approx…
The interplay between a pseudogap and superconductivity in a two-dimensional Hubbard model
L. F. Sampaio, E. J. Calegari, J. J. Rodríguez-Núñez +2
Strongly correlated electrons systems may exhibit a variety of interesting phenomena, for instance, superconductivity and pseudogap, as is the case of cuprates and pnictides. In st…
Interplay between the charge density wave phase and a pseudogap under antiferromagnetic correlations
Leonardo Prauchner, Eleonir Calegari, Julian Faundez +1
In this study, we explore the impact of short-range antiferromagnetic correlations on the charge density wave (CDW) phase in strongly correlated electron systems exhibiting the pse…
Magnetic transitions induced by pressure and magnetic field in a two-orbital -electron model in cubic and tetragonal lattices
A. C. Lausmann, E. J. Calegari, Julián Faúndez +2
We investigate the onset and evolution of under the simultaneous application of pressure and magnetic field of distinct itinerant Néel states using the underscreened Anderson Latti…
Unfolding of antiferromagnetic phases and multicritical points in a two-orbital model for Uranium compounds under pressure and magnetic field
S. G. Magalhaes, A. C. Lausmann, E. J. Calegari +1
We investigate the occurrence of multicritical points under pressure and magnetic field in a model that describes two 5f bands (of either or characters) which hybridize wit…
Effects of a k-dependent Hybridization on the Fermi Surface of an Extended Hubbard Model
D. M. Lalis, E. J. Calegari, L. C. Prauchner +1
The topology of the Fermi surface of an extended Hubbard model is investigated using the Green's function technique in a n-pole approximation. The effects of the hybrid…