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Computer simulation and detailed mean-field approximation applied to adsorption on nanoparticles
(American Physical Society, 2013-12)
Adsorption thermodynamics of interacting particles adsorbed on icosahedral and truncated octahedral nanoparticles was studied by a detailed mean-field approximation and Monte Carlo simulations. The nanoparticle is tackled ...
Critical behavior of repulsive linear k-mers on square lattices at half coverage: Theory and Monte Carlo simulations
(American Physical Society, 2003-11-15)
Monte Carlo (MC) simulations have been used to study the critical behavior of repulsive linear k-mers on square lattices at 50% coverage. A (2k × 2) ordered phase, characterized by a repetition of alternating files of ...
Finite temperature effects in the nonintegrable SU(3) Lipkin model
(Academic Press IncSan DiegoEUA, 1998)
Dirac fermions in strong electric field and quantum transport in graphene
(AMER PHYSICAL SOCCOLLEGE PK, 2012)
Our previous results on the nonperturbative calculations of the mean current and of the energy-momentum tensor in QED with the T-constant electric field are generalized to arbitrary dimensions. The renormalized mean values ...
NJL-type models in the presence of intense magnetic fields: The role of the regularization prescription
(American Physical Society, 2019-06-06)
We study the regularization dependence of the Nambu-Jona-Lasinio model (NJL) predictions for some properties of magnetized quark matter at zero temperature (and baryonic density) in the mean field approximation. The model ...
Bose-Einstein graviton condensate in a Schwarzschild black hole
(2018)
We analyze in detail a previous proposal by Dvali and Gomez that black holes could be treated as consisting of a Bose-Einstein condensate of gravitons. In order to do so we extend the Einstein-Hilbert action with a chemical ...
Estudo do modelo Blume-Capel através da teoria de campo médio
(Universidade Estadual Paulista (Unesp), 2019-08-13)
Apresenta-se um estudo das transições de fase de um material ferromagnético representado pelo modelo Blume-Capel. A investigação é realizada através da teoria de campo médio implementada através da aproximação de Bethe-Peierls. ...
Structural and magnetic properties of multilayered TiO2/FM/ TiO2/FM/CoFe2O4 (FM: Fe or Py) films grown by pulsed laser deposition
(Institute of Electrical and Electronics Engineers, 2013-04)
Two types of multilayered thin films of structure TiO2/FM/ TiO2/FM/CoFe2O4 with FM = Fe or Py were grown by means of the pulsed layer deposition technique with a total thickness of less than 350 nm. Their structural ...
Critical exponents of the yielding transition of amorphous solids
(American Physical Society, 2018-07)
We investigate numerically the yielding transition of a two-dimensional model amorphous solid under external shear. We use a scalar model in terms of values of the total local strain, derived from the full (tensorial) ...