Artículos (Física Aplicada I)
Recent Submissions
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An excess electron at polyethylene/vacuum interfaces using a reaction-field technique [Article]
(Royal Society of Chemistry, 2019)We study the surface states of an excess electron at polyethylene/vacuum interfaces using an accurate reaction-field method, specifically designed to take into account the long range interaction of the excess electron and ...
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On the effect of thin film growth mechanisms on the specular reflectance of aluminum thin films deposited via filtered cathodic vacuum arc [Article]
(MDPI, 2018)The optimisation of the specular reflectance of solar collectors is a key parameter to increase the global yield of concentrated solar power (CSP) plants. In this work, the influence of filtered cathodic vacuum arc deposition ...
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Effect of the Incorporation of Titanium on the Optical Properties of ZnO Thin Films: From Doping to Mixed Oxide Formation [Article]
(MDPI, 2019)ZnO films with Ti atoms incorporated (TZO) in a wide range (0–18 at.%) have been grown by reactive co-sputtering on silicon and glass substrates. The influence of the titanium incorporation in the ZnO matrix on the structural ...
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Parametrically driven nonlinear Dirac equation with arbitrary nonlinearity [Article]
(IOP Publishing, 2020-01)The damped and parametrically driven nonlinear Dirac equation with arbitrary nonlinearity parameter κ is analyzed, when the external force is periodic in space and given by f(x) = r cos(Kx), both numerically and in a ...
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Exact stationary solutions of the parametrically driven and damped nonlinear Dirac equation [Article]
(AIP Publishing, 2019)Two exact stationary soliton solutions are found in the parametrically driven and damped nonlinear Dirac equation. The parametric force considered is a complex ac force. The solutions appear when their frequencies are ...
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Speed-of-light pulses in a massless nonlinear dirac equation [Article]
(American Physical Society, 2019)In this work, we explore a massless nonlinear Dirac equation, i.e., a nonlinear Weyl equation. We study the dynamics of its pulse solutions and find that a localized one-hump initial condition splits into a localized two ...
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Evolution of Gaussian wave packets in capillary jets [Article]
(American Physical Society, 2019)A temporal analysis of the evolution of Gaussian wave packets in cylindrical capillary jets is presented through both a linear two-mode formulation and a one-dimensional nonlinear numerical scheme. These analyses are ...
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Antibacterial Nanostructured Ti Coatings by Magnetron Sputtering: From Laboratory Scales to Industrial Reactors [Article]
(MDPI, 2019)Based on an already tested laboratory procedure, a new magnetron sputtering methodology to simultaneously coat two-sides of large area implants (up to ~15 cm2) with Ti nanocolumns in industrial reactors has been developed. ...
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Kinetic Energy-induced Growth Regimes of Nanocolumnar Ti Thin Films Deposited by Evaporation and Magnetron Sputtering [Article]
(IOP Publishing, 2019)We experimentally analyze different growth regimes of Ti thin films associated to the existence of kinetic energy-induced relaxation mechanisms in the material's network when operating at oblique geometries. For this ...
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Radiometric dating of recent sediments: On the performance of 210 Pb based CRS chronologies under varying rates of supply [Article]
(ELSEVIER, 2019)Radiometric dating was a revolutionary contribution to the study of sedimentary processes. Empirical data from varved sediments show that unsupported 210Pb (210 Pbexc) fluxes vary over time while they statistically ...
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Growth of nanocolumnar thin films on patterned substrates at oblique angles [Article]
(Wiley-VCH Verlag, 2019)The influence of one dimensional substrate patterns on the nanocolumnar growth of thin films deposited by magnetron sputtering at oblique angles is theoretically and experimentally studied. A well‐established growth model ...
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Soliton ratchet induced by random transitions among symmetric sine-Gordon potentials [Article]
(AIP Publishing, 2019)The generation of net solitonmotion induced by randomtransitions among N symmetric phase-shifted sine-Gordon potentials is investigated, in the absence of any external force and without any thermal noise. The phase shifts ...
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Impulse-induced localized nonlinear modes in an electrical lattice [Article]
(IOP Publishing, 2019)Intrinsic localized modes, also called discrete breathers (DBs), can exist under certain conditions in one-dimensional nonlinear electrical lattices driven by external periodic excitations (PEs). In this work, we have ...
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Nonlinear waves in a chain of magnetically coupled pendula [Article]
(Acoustical Society of America, 2018)A motivation for the study of reduced models like one-dimensional systems in Solid State Physics is the complexity of the full problem. In recent years our group has studied theoretically, numerically and experimentally ...
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Experimental and numerical observation of dark and bright breathers in the band gap of a diatomic electrical lattice [Article]
(American Physical Society, 2019)We observe dark and bright intrinsic localized modes (ILMs), also known as discrete breathers, experimentally and numerically in a diatomic-like electrical lattice. The experimental generation of dark ILMs by driving ...
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Aplicación de un ciclo de mejora docente en Dinámica de la partícula [Article]
(Universidad de Sevilla, 2018)En esta comunicación se describe el diseño, aplicación y evaluación de un ciclo de mejora docente (CMD) realizado en la asignatura de Física I del Grado de Ingeniería Electrónica Industrial de la Universidad de Sevilla. ...
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Solitary waves in the Ablowitz--Ladik equation with power-law nonlinearity [Article]
(IOP Publishing, 2019)We introduce a generalized version of the Ablowitz-Ladik model with a power-law nonlinearity, as a discretization of the continuum nonlinear Schr¨odinger equation with the same type of the nonlinearity. The model opens a ...
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Continuous families of solitary waves in non-symmetric complex potentials: A Melnikov theory approach [Article]
(Elsevier, 2019)The existence of stationary solitary waves in symmetric and non-symmetric complex potentials is studied by means of Melnikov’s perturbation method. The latter provides analytical conditions for the existence of such waves ...
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Minimal formulation of the linear spatial analysis of capillary jets: Validity of the two-mode approach [Article]
(American Physical Society, 2018)A rigorous and complete formulation of the linear evolution of harmonically stimulated capillary jets should include infinitely many spatial modes to account for arbitrary exit conditions [J. Guerrero et al., J. Fluid ...
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Infinite charge mobility in muscovite at 300K [Article]
(IOP, 2017)Evidence is presented for infinite charge mobility in natural crystals of muscovite mica at room temperature. Muscovite has a basic layered structure containing a flat monatomic sheet of potassium sandwiched between ...