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Daniel Reyes

Instituto Militar de Engenharia

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Physical Review B | 2007

Thermodynamic quantum critical behavior of the Kondo necklace model

Daniel Reyes; Mucio A. Continentino

We obtain the phase diagram and thermodynamic behavior of the Kondo necklace model for arbitrary dimensions

Physical Review B | 2008

Bose-Einstein condensation in antiferromagnets close to the saturation field

Daniel Reyes; A. Paduan-Filho; Mucio A. Continentino

Journal of Physics: Condensed Matter | 2007

Dimensional crossover in anisotropic Kondo lattices

Daniel Reyes; Mucio A. Continentino

using a representation for the localized and conduction electrons in terms of local Kondo singlet and triplet operators. A decoupling scheme on the double time Greens functions yields the dispersion relation for the excitations of the system. We show that in

Journal of Magnetism and Magnetic Materials | 2009

Thermodynamic quantum critical behavior of the anisotropic Kondo necklace model

Daniel Reyes; Mucio A. Continentino; Han-Ting Wang

d\geq 3

Annals of Physics | 2016

s- and d-wave superconductivity in a two-band model

Daniel Reyes; Mucio A. Continentino; Christopher Thomas; C. Lacroix

there is an antiferromagnetically ordered state at finite temperatures terminating at a quantum critical point (QCP). In 2-d, long range magnetic order occurs only at T=0. The line of Neel transitions for

Physical Review B | 2013

Pomeranchuk-Nematic instability in the presence of a weak magnetic field

Daniel G. Barci; Daniel Reyes

d>2

Physica B-condensed Matter | 2005

Phase diagram of the Kondo necklace model at finite temperatures

Daniel Reyes; A. Troper; A. Saguia; Mucio A. Continentino

varies with the distance to the quantum critical point QCP

Physica B-condensed Matter | 2008

Crossover from 2d to 3d in anisotropic Kondo lattices

Daniel Reyes; Mucio A. Continentino

|g|

Journal of Magnetism and Magnetic Materials | 2008

Field induced magnetic quantum critical behavior in the Kondo necklace model

Daniel Reyes; Mucio A. Continentino

as,

Journal of Magnetism and Magnetic Materials | 2017

Kondo necklace model in approximants of Fibonacci chains

Daniel Reyes; H.S. Tarazona; G. Cuba-Supanta; C. V. Landauro; R. Espinoza; J. Quispe-Marcatoma

T_N \propto |g|^{\psi}

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