RSS 1.0Artigos - Física - IGCE
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Prediction of the electrical response of solution-processed thin-film transistors using multifactorial analysis
Braga, João P.
; Moises, Lucas A. ; Gozzi, Giovani ; Fugikawa-Santos, Lucas (Journal of Materials Science: Materials in Electronics, 2019) [Artigo]
Thin-film transistors (TFTs) with the active layer composed by zinc oxide (ZnO) deposited via spray-pyrolysis present several advantages such as high electrical performance, high optical transmittance in the visible spectrum, ... -
Chiral magnetic chemical bonds in molecular states of impurities in Weyl semimetals
Marques, Y.; Mizobata, W. N. ; Oliveira, R. S. ; de Souza, M. ; ; ; Seridonio, A. C. (Scientific Reports, 2019) [Artigo]
We demonstrate that chirality of the electron scattering in Weyl semimetals leads to the formation of magnetic chemical bonds for molecular states of a pair of impurities. The effect is associated with the presence of ... -
An investigation of the parameter space for a family of dissipative mappings
De Oliveira, Juliano A.; Montero, Leonardo T. ; ; ; ; Leonel, Edson D. (Chaos, 2019) [Artigo]
The parameter plane investigation for a family of two-dimensional, nonlinear, and area contracting map is made. Several dynamical features in the system such as tangent, period-doubling, pitchfork, and cusp bifurcations ... -
Plasmonic silver-based reversible photochromism in Ag+‒doped organomodified silicates-phosphotungstate hybrid films
; Ferreira-Neto, Elias Paiva; ; Ullah, Sajjad ; Donatti, Dario Antonio ; Lima Ribeiro, Sidney José ; (Optical Materials, 2019) [Artigo]
We report novel Ag+‒doped ormosil-phosphotungstate (PW12O40 3−) hybrid films that exhibit reversible yellow photochromism based on the phosphotungstate-assisted photo-induced formation of silver nanoparticles (AgNPs) and ... -
Ground state determination and band gaps of bilayers of graphenylenes and octafunctionalized-biphenylenes
; Paupitz, Ricardo (Computational Materials Science, 2019) [Artigo]
Device fabrication often requires materials that are either reliably conducting, reliably semiconducting, or reliably nonconducting. Bilayer graphene (BLG) changes from a superconductor (Cao et al., 2018) to a semiconductor ... -
A relativistic bouncer on a vibrating surface
; Lagos, R. E. (Journal of Physics: Conference Series, 2018) [Trabalho apresentado em evento]
We consider a special relativity scenario in order to study the dynamical behavior of a particle flying under the influence of a gravitational field, colliding successive times against a rigid vibrating surface, via a ... -
Zn1-xMgxO nanoparticles prepared by the polymeric precursor method: Correlation between photoluminescence and local structure
Cury de Oliveira, Rodrigo; Martins, Denis Expedito ; ; Mesquita, Alexandre (Optical Materials, 2018) [Artigo]
ZnO is an n-type semiconductor having a wide band gap which has been studied as green phosphors because of its luminescence properties, although the centers and mechanisms responsible for its luminescence are still a matter ... -
Magnetic Gruneisen parameter for model systems
Gomes, Gabriel O.; Squillante, Lucas ; Seridonio, A. C. ; ; Lagos, Roberto E. ; Souza, Mariano de (Physical Review B, 2019) [Artigo]
The magnetocaloric effect (MCE), which is the refrigeration based on the variation of the magnetic entropy, is of great interest in both technological applications and fundamental research. The MCE is quantified by the ... -
Enhanced Gruneisen Parameter in Supercooled Water
; ; Souza, Mariano de (Scientific Reports, 2019) [Artigo]
We use the recently-proposed compressible cell Ising-like model to estimate the ratio between thermal expansivity and specific heat (the Gruneisen parameter Gamma(s)) in supercooled water. Near the critical pressure and ... -
Spin-dependent zero-bias peak in a hybrid nanowire-quantum dot system: Distinguishing isolated Majorana fermions from Andreev bound states
Ricco, L. S.; Souza, M. de ; ; ; Seridonio, A. C. (Physical Review B, 2019) [Artigo]
A hybrid system composed by a semiconducting nanowire with proximity-induced superconductivity and a quantum dot at the end working as a spectrometer was recently used to quantify the so-called degree of Majorana nonlocality ... -
Statistical Scaling Laws for Competing Biological Species
Silva, Vinicius Barros da (Complex Systems, 2018) [Artigo]
Universality classes are defined for an idealized nonlinear system that governs the competition between biological species. The decay to asymptotic steady state is examined for supercritical Hopf bifurcation by considering ... -
A Monte Carlo approach for the bouncer model
Díaz, Gabriel; Yoshida, Makoto ; Leonel, Edson D. (Physics Letters, Section A: General, Atomic and Solid State Physics, 2017) [Artigo]
A Monte Carlo investigation is made in a dissipative bouncer model to describe some statistical properties for chaotic dynamics as a function of the control parameters. The dynamics of the system is described via a two ... -
Economia de energia através de estratégias passivas e ativas: Um estudo para habitação de interesse social
; de Moraes, Clauciana Schmidt Bueno; Santarine, Gerson Antonio ; (Espacios, 2017) [Artigo]
The present paper aims to analyze the implementation of more energy efficient alternatives in social interest homes, in order to contribute for its economy and the rational use. In this context, it was done a literature ... -
Acute administration of high doses of taurine does not substantially improve high-intensity running performance and the effect on maximal accumulated oxygen deficit is unclear
(Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme, 2016) [Artigo]The aim of the present study was to investigate the effects of acute administration of taurine overload on time to exhaustion (TTE) of high-intensity running performance and alternative maximal accumulated oxygen deficit ... -
Influencia del ejercicio físico en el metabolismo proteico de ratas con hipertiroidismo
; ; Júnior, Marcelo C.; Dalia, Rodrigo ; Luciano, Eliete (Archivos de Medicina del Deporte, 2014) [Artigo]
Background: One of functions of the thyroid hormones is to regulate body metabolism, including the increase of the protein synthesis. Thus, dysfunction in these hormones can lead to decreased physical exertion tolerance, ... -
Majorana oscillations modulated by Fano interference and degree of nonlocality in a topological superconducting-nanowire-quantum-dot system
Ricco, L. S.; ; ; Seridonio, A. C. (Physical Review B, 2018) [Artigo]
We explore theoretically the influence of Fano interference in the so-called Majorana oscillations in a T-shaped hybrid setup formed by a quantum dot (QD) placed between conducting leads and side coupled to a topological ... -
Multifunctional nanostructured Co-doped ZnO: Co spatial distribution and correlated magnetic properties
; Mesquita, Alexandre; ; ; ; ; ; ; ; et al. (Physical Chemistry Chemical Physics, 2018) [Artigo]
In this report we present a systematic structural and magnetic analysis of Co-doped ZnO nanoparticles prepared via a microwave-assisted hydrothermal route. The structural data confirm the incorporation of Co ions into the ... -
Effects of a parametric perturbation in the Hassell mapping
de Oliveira, Juliano A.; de Mendonça, Hans M.J. ; da Costa, Diogo R. ; Leonel, Edson D. (Chaos, Solitons and Fractals, 2018) [Resenha]
The convergence to the fixed point near at a transcritical bifurcation and the organization of the extreming curves for a parametric perturbed Hassell mapping are investigated. The evolution of the orbits towards the fixed ... -
Resonant electron tunneling spectroscopy of antibonding states in a Dirac semimetal
Marques, Y.; ; ; Seridonio, A. C. (Physical Review B, 2018) [Artigo]
Recently, it was shown both theoretically and experimentally that certain three-dimensional (3D) materials have Dirac points in the Brillouin zone, thus being 3D analogs of graphene. Moreover, it was suggested that under ... -
Effect of different synthesis methods on the textural properties of calcium tungstate (CaWO4) and its catalytic properties in the toluene oxidation
; ; Mesquita, Alexandre; ; ; ; ; ; (Materials Research, 2018) [Artigo]
Calcium tungstate (CaWO4) crystals were prepared by microwave-assisted hydrothermal (MAH) and polymeric precursor methods (PPM). These crystals were structurally characterized by X-ray diffraction (XRD), N2 adsorption, ...