10.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Universidade de São PauloBR795 papers
- Universidade Federal do Rio de JaneiroBR793 papers
- Boston UniversityUS774 papers
- Brookhaven National LaboratoryUS774 papers
- Ludwig-Maximilians-Universität MünchenDE774 papers
- Queen Mary University of LondonGB774 papers
- The University of Texas at ArlingtonUS774 papers
- University of GenevaCH774 papers
- University of OklahomaUS774 papers
- University of OxfordGB774 papers
- University of Science and Technology of ChinaCN774 papers
- AGH University of KrakowPL773 papers
12 papers · 1 filter
Enhancing long-range order in disordered two-band s-wave superconductors
Heron Caldas, S. Rufo, M. A. R. Griffith
We investigate the effects of disorder in a hybridized two-dimensional two-band s-wave superconductor model. The situation in which electronic orbitals form these bands with angula…
Antiferromagnetic phase diagram of the cuprate superconductors
Lizardo H. C. M. Nunes, A. W. Teixeira, E. C. Marino
Taking the spin-fermion model as the starting point for describing the cuprate superconductors, we obtain an effective nonlinear sigma-field hamiltonian, which takes into account t…
Temperature vs. doping phase diagram of cuprate superconductors
Lizardo H. C. M. Nunes, A. W. Teixeira, E. C. Marino
Starting from a spin-fermion model for the cuprate superconductors, we obtain an effective interaction for the charge carriers by integrating out the spin degrees of freedom. Our m…
Superconducting and Pseudogap Transition Temperatures in High-Tc Cuprates and the Dependence on Pressure
E. C. Marino, Reginaldo O. Corrêa, R. Arouca +2
We derive analytic expressions for the critical temperatures of the superconducting (SC) and pseudogap (PG) transitions of the high-Tc cuprates as a function of doping. These are i…
Finite Temperature Phase Diagrams of a Two-band Model of Superconductivity
Heron Caldas, A. Celes, David Nozadze
We explore the temperature effects in the superconducting phases of a hybridized two-band system. We show that for zero hybridization between the bands, there are two different cri…
A Two-band Model for p-wave Superconductivity
Heron Caldas, F. S. Batista, Mucio A. Continentino +2
In this paper we study the effects of hybridization in the superconducting properties of a two-band system. We consider the cases that these bands are formed by electronic orbitals…
Topological states in normal and superconducting -wave chains
Mucio A. Continentino, Heron Caldas, David Nozadze +1
We study a two-band model of fermions in a 1d chain with an antisymmetric hybridization that breaks inversion symmetry. We find that for certain values of its parameters, the -…
Renormalization group approach to a -wave superconducting model
Mucio A. Continentino, Fernanda Deus, Heron Caldas
We present in this work an exact renormalization group (RG) treatment of a one-dimensional -wave superconductor. The model proposed by Kitaev consists of a chain of spinless fer…
Mechanism for enhancement of superconductivity in multi-band systems with odd parity hybridization
Mucio A. Continentino, Igor T. Padilha, Heron Caldas
The study of multi-band superconductivity is relevant for a variety of systems, from ultra cold atoms with population imbalance to particle physics, and condensed matter. As a cons…
Superconductivity in graphene stacks: from the bilayer to graphite
Lizardo H. C. M. Nunes, E. C. Marino, A. L. Mota
We study the superconducting phase transition, both in a graphene bilayer and in graphite. For that purpose we derive the mean-field effective potential for a stack of graphene lay…
Surface Energy in Cold Asymmetrical Fermion Superfluids
Heron Caldas
We derive the energy of the surface between the normal and superfluid components of a mixed phase of a system composed of two particle species with different densities. The surface…
An Effective Field Model to High Temperature Superconductors: Fitting of The Energy Gap to the Experimental Results of the
E. C. Bastone, P. R. Silva
We use an effective field model (transverse Ising model) to describe the dependence on the temperature of the energy gap of some two-dimensional superconducting systems. Th…