Minos A. Neto
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View article: Effect of a Carbon Nanotube on Ballistic Conduction through Single-Quantum-Dot
Effect of a Carbon Nanotube on Ballistic Conduction through Single-Quantum-Dot Open
We will study the competitive effect between the transport of a quantum dot adsorbed to a ballistic channel and laterally coupled to a single-walled carbon nanotube (SWNT). We will use the “tight-binding" approach to analytically write the…
View article: Nonequilibrium study of the $J_{1}-J_{2}$ Ising model with random $J_{2}$ couplings in the square lattice
Nonequilibrium study of the $J_{1}-J_{2}$ Ising model with random $J_{2}$ couplings in the square lattice Open
We studied the critical behavior of the $J_{1}-J_{2}$ spin-{1/2} Ising model in the square lattice by considering $J_{1}$ fixed and $J_{2}$ as random interactions following discrete and continuous probability distribution functions. The co…
View article: Unveiling Phase Transitions In 1D Systems With Short-Range Interactions
Unveiling Phase Transitions In 1D Systems With Short-Range Interactions Open
The statement that any phase transition is related to the appearance or disappearance of long-range spatial correlations precludes a finite transition temperature in one-dimensional (1D) systems. In this paper we demonstrate that the 1D Is…
View article: Effect of a magnetic field in an S = 1 antiferromagnetic chain with single-ion anisotropy and alternating bonds with disorder
Effect of a magnetic field in an S = 1 antiferromagnetic chain with single-ion anisotropy and alternating bonds with disorder Open
View article: Effect of carbon nanotube on ballistic conduction through single-quantum-dot
Effect of carbon nanotube on ballistic conduction through single-quantum-dot Open
We will study the competitive effect between the transport of a quantum dot adsorbed to a ballistic channel and laterally coupled to a single-walled carbon nanotube (SWNT). We will use the tight-binding approach to analytically write the S…
View article: Bosonic Dirac materials on a honeycomb antiferromagnetic Ising model
Bosonic Dirac materials on a honeycomb antiferromagnetic Ising model Open
View article: Discontinuous transitions can survive to quenched disorder in a two-dimensional nonequilibrium system
Discontinuous transitions can survive to quenched disorder in a two-dimensional nonequilibrium system Open
We explore the effects that quenched disorder has on discontinuous nonequilibrium phase transitions into absorbing states. We focus our analysis on the Naming Game model, a nonequilibrium low-dimensional system with different absorbing sta…
View article: Unveiling phase transitions in 1D systems with short-range interactions
Unveiling phase transitions in 1D systems with short-range interactions Open
The statement that any phase transition is related to the appearance or disappearance of long-range spatial correlations precludes a finite transition temperature in one-dimensional (1D) systems. In this paper we demonstrate that the 1D Is…
View article: A proper choice of the Ising model order parameter
A proper choice of the Ising model order parameter Open
View article: Bosonic Dirac Materials on a honeycomb antiferromagnetic Ising model
Bosonic Dirac Materials on a honeycomb antiferromagnetic Ising model Open
Motivated by the recent proposal of Bosonic Dirac materials (BDM), we revisited the Ising model on a honeycomb lattice in the presence of the longitudinal and transverse fields. We apply linear spin-wave theory to obtain the magnon dispers…
View article: Ferromagnetic phases due to competing short- and long-range interactions in the spin-5/2 and spin-2 Blume–Capel model
Ferromagnetic phases due to competing short- and long-range interactions in the spin-5/2 and spin-2 Blume–Capel model Open
View article: Spin-1/2 anisotropic Heisenberg antiferromagnet model with Dzyaloshinskii-Moriya interaction via mean-field approximation
Spin-1/2 anisotropic Heisenberg antiferromagnet model with Dzyaloshinskii-Moriya interaction via mean-field approximation Open
View article: Cooper-pair size and binding energy for unconventional superconducting systems
Cooper-pair size and binding energy for unconventional superconducting systems Open
View article: A new effective-field technique for the ferromagnetic spin-1 Blume-Capel model in a transverse crystal field
A new effective-field technique for the ferromagnetic spin-1 Blume-Capel model in a transverse crystal field Open
A new approximating technique is developed so as to study the quantum ferromagnetic spin-1 Blume-Capel model in the presence of a transverse crystal field in the square lattice. Our proposal consists of approaching the spin system by consi…
View article: Multicritical behavior of the two-dimensional transverse Ising metamagnet in a longitudinal magnetic field
Multicritical behavior of the two-dimensional transverse Ising metamagnet in a longitudinal magnetic field Open
View article: A mean-field approach applied for the ferromagnetic spin-1 Blume-Capel model
A mean-field approach applied for the ferromagnetic spin-1 Blume-Capel model Open
We applied a mean-field approach associated to Monte Carlo simulations in order to study the spin-1 ferromagnetic Blume-Capel model in the square and the linear lattice. This new technique, which we call MFT-MC, determines the molecular fi…
View article: The spin-3/2 Blume-Capel model with competing short- and long-range interactions
The spin-3/2 Blume-Capel model with competing short- and long-range interactions Open
The phase diagrams of the spin-$3/2$ Blume-Capel model with competing short and long-range interactions were studied through the free energy density obtained by analytical methods. The competition emerges when positive short-range interact…
View article: The spin-3/2 Blume-Capel model with competing short- and long-range\n interactions
The spin-3/2 Blume-Capel model with competing short- and long-range\n interactions Open
The phase diagrams of the spin-$3/2$ Blume-Capel model with competing short\nand long-range interactions were studied through the free energy density\nobtained by analytical methods. The competition emerges when positive\nshort-range inter…
View article: Magnetization plateaus in the antiferromagnetic Ising chain with single-ion anisotropy and quenched disorder
Magnetization plateaus in the antiferromagnetic Ising chain with single-ion anisotropy and quenched disorder Open
We have studied the presence of plateaus on the low-temperature magnetization of an antiferromagnetic spin-1 chain, as an external uniform magnetic field is varied. A crystal-field interaction is present in the model and the exchange const…