Listar División de Nanociencias y Materiales por título

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    • Solitones no autónomos en fibras ópticas 

      Pérez Maldonado, Maximino; Rosu Barbus, Haret-Codratian (Sociedad Mexicana de Física, A.C., 2015)
      "Soluciones solitónicas de las ecuaciones de Schrôdinger no lineales de coeficientes variables que describen muchas situaciones reales de propagación solitónica se pueden obtener usando el mapeo de ‘integrabilidad diseñada’ ...

    • Solutions of the perturbed KdV equation for convecting fluids by factorizations 

      Cornejo Pérez, Octavio; Rosu Barbus, Haret-Codratian (2010)
      "In this paper, we obtain some new explicit travelling wave solutions of the perturbed KdV equation through recent factorization techniques that can be performed when the coefficients of the equation fulfill a certain ...

    • Spectral parameter power series representation for Hill´s discriminant 

      Khmelnytskaya, Kira V.; Rosu Barbus, Haret-Codratian (Elsevier, 2010)
      "We establish a series representation of the Hill discriminant based on the spectral parameter power series (SPPS) recently introduced by V. Kravchenko. We also show the invariance of the Hill discriminant under a Darboux ...

    • Stabilisation of small mono- and bimetallic gold–silver nanoparticles using calix[8]arene derivatives 

      Ray, Priyanka; Clément, Marie; Martini, Cyril; Abdellah, Ibrahim; Beaunier, Patricia; Rodríguez López, José Luis; Huc, Vincent; Remita, Hynd; Lampre, Isabelle (Royal Society of Chemistry, 2018)
      "In this paper, we report the synthesis of octa(hydroxy)-octa(mercaptobutoxy)calix[8]arene and its use as a stabiliser of nanoparticles (NPs). We show that the reduction of gold and/or silver ions in the presence of this ...

    • Stability analysis of orbital modes for a generalized Lane-Emden equation 

      Adams, Ronald; Mancas, Stefan C; Rosu Barbus, Haret-Codratian (Elsevier, 2019)
      "We present a stability analysis of the standard nonautonomous systems type for a recently introduced generalized Lane-Emden equation which is shown to explain the presence of some of the structures observed in the atomic ...

    • Stability of FeVO4-II under Pressure: A First-Principles Study 

      Romero Vázquez, Pricila Betbirai; López Moreno, Sinhué; Errandonea, Daniel (MDPI, 2022)
      "In this work, we report first-principles calculations to study FeVO4 in the CrVO4-type (phase II) structure under pressure. Total-energy calculations were performed in order to analyze the structural parameters, the ...

    • Stationary states in a potential well 

      Rosu Barbus, Haret-Codratian; Morán López, José Luis (UNESCO, 2007)
      "In the early days of the 20th century a set of important observations in atomic and molecular physics could not be explained on the basis of the laws of classical physics. One of the main findings was the emission of light ...

    • Statistical similarity between the compression of a porous material and earthquakes 

      Baró, Jordi; Corral, Alvaro; Illa, Xavier; Planes, Antoni; Salje, Ekhard K. H.; Schranz, Wilfried; Soto-Parra, Daniel Enrique; Vives, Eduard (2013-02)
      "It has long been stated that there are profound analogies between fracture experiments and earthquakes; however, few works attempt a complete characterization of the parallels between these so separate phenomena. We study ...

    • Strong and stable photoluminescence from the semiconducting inner tubes within double walled carbon nanotubes 

      Shimamoto, Daisuke; Muramatsu, Hiroyukim; Hayashi, Takuya; Endo, Morinobu; Park, Jin Sung; Saito, Riichiro; Terrones Maldonado, Mauricio; Dresselhaus, Mildred (2009-01)
      "We examined the optical features of single wall carbon nanotubes (SWNTs) and the inner tubes within double walled carbon nanotubes (DWNTs) having the same (n,m) chirality. The brighter and more stable photoluminescence ...

    • Structural and magnetic characterization of the intermartensitic phase transition in NiMnSn Heusler alloy ribbons 

      Sánchez Llamazares, José Luis; Flores Zúñiga, Horacio; Ríos Jara, David; Sánchez Valdés, Cesar Fidel; García Fernández, T.; Ross, Caroline A.; Garcia, Carlos (2013-05)
      "Phase transitions and structural and magnetic properties of rapidly solidified Ni50Mn38Sn12 alloy ribbons have been studied. Ribbon samples crystallize as a single-phase, ten-layered modulated (10M) monoclinic martensite ...

    • Structure and photocatalytic activity of maleic anhydride-functionalized TiO2 nanoparticles by a simple method 

      Hernández Del Castillo, Pável César; Robles Manuel, Saùl; Ruiz, Facundo; Rodríguez González, Vicente (BMC, 2022)
      "Titanium dioxide (TiO2) nanoparticles were functionalized with maleic anhydride (MA). The extension of adsorbed MA on the TiO2 was evaluated by ultrasonic and magnetic stirring. Total Organic Carbon and Thermogravimetric ...

    • Structures and electronic properties of TinV (n = 1–16) clusters: first-principles calculations 

      Rodríguez y Domínguez Kessler, Peter Ludwing; Rodríguez Domínguez, Adán Rubén (American Chemical Society, 2016)
      "Structures and electronic properties of TinV (n = 1–16) clusters have been investigated using density functional theory with the generalized gradient approximatio. The calculations have shown that the TinV clusters favor ...

    • Study of the presence of spherical deformations on the Al top electrode due to electroforming in rewritable organic resistive memories 

      Ávila Niño, José Antonio; Reyes Reyes, Marisol; López Sandoval, Román (Royal Society of Chemistry, 2017)
      "Physical deformations are observed at the top electrodes during the electroforming process in Al/PEDOT: PSS + nitrogen doped multiwalled carbon nanotube (N-MWCNTs)/Al rewritable resistive memory devices. These physical ...

    • Superfluid Rayleigh–Plesset extension of FLRW cosmology 

      Rosu Barbus, Haret-Codratian; Mancas, Stefan C; Hsieh, Chun-Chung (Elsevier, 2021)
      "Guided by the analogy with the Rayleigh–Plesset dynamics of multielectron bubbles in superfluid He-4, we consider the cosmological FLRW evolution equation with additional cubic and sixth powers of the inverse of the scale ...

    • Superlinear photoluminescence by ultrafast laser pulses in dielectric matrices with metal nanoclusters 

      Bornacelli, J.; Torres Torres, Carlos; Silva Pereyra, Héctor Gabriel; Labrada Delgado, Gladis Judith; Crespo Sosa, Alejandro; Cheang Wong, Juan Carlos; Oliver y Gutiérrez, Alicia María (Nature Publishing Group, 2019)
      "An intense photoluminescence emission was observed from noble metal nanoclusters (Pt, Ag or Au) embedded in sapphire plates, nucleated by MeV ion-implantation and assisted by an annealing process. In particular, the ...

    • Superparamagnetic state in La0.7Sr0.3MnO3 thin films obtained by rf-sputtering 

      Ramírez Camacho, Mayra Cecilia; Sánchez Valdés, Cesar Fidel; Curiel Álvarez, Mario; Sánchez Llamazares, José Luis; Siqueiros, Jesús M.; Raymond Herrera, Oscar (Nature Publishing Group, 2020)
      "A novel superparamagnetic state has been observed in high quality La0.7Sr0.3MnO3 (LSMO) thin films directly grown by rf-sputtering on SiOx/Si(100) substrates. The films are nanostructured without grain boundaries, constituted ...

    • Supersymmetric free-damped oscillators: adaptive observer estimation of the Riccati parameter 

      Ibarra Junquera, Vrani; Rosu Barbus, Haret-Codratian; Cornejo Pérez, Octavio (2006)
      "A supersymmetric class of free damped oscillators with three parameters has been obtained in 1998 by Rosu and Reyes through the factorization of the Newton equation. The supple-mentary parameter is the integration constant ...

    • Supersymmetric methods in the traveling variable: inside neurons and at the brain scale 

      Rosu Barbus, Haret-Codratian; Cornejo Pérez, Octavio; Pérez Terrazas, Jaime Enrique (2008)
      "We apply the mathematical technique of factorization of differential operators to two different problems. First we review our results related to the supersymmetry of the Montroll kinks moving onto the microtubule walls ...

    • Supersymmetric pairing of kinks for polynomial nonlinearities 

      Rosu Barbus, Haret-Codratian; Cornejo Pérez, Octavio (2005)
      "We show how one can obtain kink solutions of ordinary differential equations with polynomial nonlinearities by an efficient factorization procedure directly related to the factorization of their nonlinear polynomial part. ...

    • Supersymmetry of FRW barotropic cosmologies 

      Rosu Barbus, Haret-Codratian; Ojeda May, Pedro Armando (2006)
      "Barotropic FRW cosmologies are presented from the standpoint of nonrelativis-tic supersymmetry. First, we reduce the barotropic FRW system of diferential equations to simple harmonic oscillator diferential equations. ...