Zobrazeno 1 - 10
of 168
pro vyhledávání: '"Neto, Minos A."'
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 configuration
Externí odkaz:
http://arxiv.org/abs/2112.11569
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 SWNT Green f
Externí odkaz:
http://arxiv.org/abs/2010.11753
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 Ising model w
Externí odkaz:
http://arxiv.org/abs/1911.05475
Autor:
Neto, Minos A., Brigatti, E.
Publikováno v:
Phys. Rev. E 101, 022112 (2020)
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 states. The re
Externí odkaz:
http://arxiv.org/abs/1911.07294
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 dispersion and its
Externí odkaz:
http://arxiv.org/abs/1904.06323
Autor:
Salmon, Octavio Daniel Rodriguez, Neto, Minos Adão, Neto, Francisco Dinóla, Pariona, Denis Américo Murillo, Tapia, Justo Rojas
We broaden the study of the statistical physics of the spin-$S$ Blume-Capel model with ferromagnetic mean-field interactions $J$ in competition with short-range antiferromagnetic interactions $K$ in a linear chain in the thermodynamic limit. This wor
Externí odkaz:
http://arxiv.org/abs/1804.07228
Autor:
Parente, Walter E. F., Pacobahyba, J. T. M., Neto, Minos A., Araújo, Ijanílio G., Plascak, J. A.
The spin-1/2 anisotropic Heisenberg model with antiferromagnetic exchange interactions in the presence of a external magnetic field and a Dzyaloshinskii-Moriya interaction is studied by employing the usual mean-field approximation. The magnetic prope
Externí odkaz:
http://arxiv.org/abs/1802.07172
The main proposal of this paper is to analyze the size of the Cooper pairs composed by unbalanced mass fermions from different electronic bands along the BCS-BEC crossover and study the binding energy of the pairs. We are considering an interaction b
Externí odkaz:
http://arxiv.org/abs/1801.05491
Publikováno v:
In Chemical Physics 1 March 2022 555
Phase transition induced for external field in tree-dimensional isotropic Heisenberg antiferromagnet
Autor:
Neto, Minos A., Viana, J. Roberto, Salmon, Octavio D. R., Filho, E. Bublitz, de Sousa, J. Ricardo
In this paper, we report mean-field and effective-field renormalization group calculations on the isotropic Heisenberg antiferromagnetic model under a longitudinal magnetic field. As is already known, these methods, denoted by MFRG and EFRG, are base
Externí odkaz:
http://arxiv.org/abs/1706.07441