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Serrano, A. ; Llorca Hernando, O. ; Campo, A. del ; Rubio Marcos, F. ; Rodríguez de la Fuente, Óscar ; Fernandez, J. F. ; García, M. A. | Amer Inst Physics | 2018-10-07We present here a study on the modification of morphological and plasmonic properties of Ag thin films deposited on glass substrates upon annealing in air at different temperatures. Initially, Ag films are continuous and exhibit extended surface[...]texto impreso
In this work we use Riemann-Hilbert problems for multiple orthogonal polynomials in order to derive string equations associated to Lax-Orlov pairs operators. These string equations provide us with a useful tool to analyze the large n-limit of th[...]texto impreso
A series of GaAs wafers with different doping levels and electrical resistivity has been used to investigate the scanning electron acoustic microscopy (SEAM) application to the characterization of this material. It has been found that SEAM is pa[...]texto impreso
We calculate the bulk viscosity of a pion gas at low energies within the kinetic theory approach and show the importance of dealing properly with the zero modes of this transport coefficient.texto impreso
Pal, U ; Fernández Sánchez, Paloma ; Piqueras de Noriega, Javier ; Sochinskii, N. V. ; Dieguez, E. | Amer Inst Physics | 1995-08-01Cathodoluminescence (CL) microscopic techniques have been used to study the spatial distribution of structural defects and the deep levels in CdTe:Ge bulk crystals. The effect of Ge doping with concentrations of 10(17) and 10(19) cm(-3) on the c[...]texto impreso
Rams, J. ; Méndez Martín, Bianchi ; Craciun, G. ; Plugaru, R. ; Piqueras de Noriega, Javier | Amer Inst Physics | 1999-03-22An increase of the cathodoluminescence (CL) signal of porous silicon (PS) cracked in vacuum of up to three orders of magnitude has been achieved. Under high electron-beam currents, the samples cracked in interconnected pieces of tens of microns,[...]texto impreso
Nogales Díaz, Emilio ; Méndez Martín, Bianchi ; Piqueras de Noriega, Javier | Amer Inst Physics | 2005-03-14ß-Ga_2O_3 nano- and microwires with diameters ranging from tens of nanometers to about one micron and lengths of up to tens of microns, have been obtained by sintering Ga_2O_3 powder under argon flow. The structures have been investigated by cat[...]texto impreso
Méndez Martín, Bianchi ; Dutta, P. S. ; Piqueras de Noriega, Javier ; Dieguez, E. | Amer Inst Physics | 1995-10-30The homogeneity and luminescence properties of undoped bulk GaSb have been studied by the cathodoluminescence (CL) technique in the scanning electron microscope. CL images have revealed a nonuniform distribution of native defects in GaSb wafers [...]texto impreso
Fernández Sánchez, Paloma ; Piqueras de Noriega, Javier ; Sochinskii, N. V. ; Muñoz, V. ; Bernardi, S. | Amer Inst Physics | 1997-11-24CdTe(100)/GaAs(100) and CdTe(lll)/CdTe(lll) layers grown by metalorganic vapor phase epitaxy (MOVPE) were investigated The layers were recrystallized to improve their morphology by scanning the surface with a 100 mu m diameter spot from an Ar io[...]texto impreso
Mártil de la Plaza, Ignacio ; González Díaz, Germán ; Hernández Rojas, J. L. ; Lucía Mulas, María Luisa ; Sánchez Quesada, Francisco ; Santamaría Sánchez-Barriga, Jacobo | Amer Inst Physics | 1992-04-13CuGaxIn1-xSe2 thin films have been deposited by rf sputtering from three targets with different (Ga,In) content (x = 0.25, x = 0.5, and x = 0.75). A structural, compositional, optical, and electrical study has been carried out for films grown at[...]texto impreso
Panin, G. N. ; Díaz-Guerra Viejo, Carlos ; Piqueras de Noriega, Javier | Amer Inst Physics | 1998-04-21A correlative study of the electrically active defects of CdxHg1-xTe and CdTe crystals has been carried out using a scanning electron microscope/scanning tunneling microscope (SEM/STM) combined system. Charged structural and compositional defect[...]texto impreso
Ivanov, M. V. ; Megías, G. D. ; González Jiménez, R. ; Moreno, O. ; Bárbaro, M. B. ; Caballero, J. A. ; Donnelly, T. W. ; Antonov, A. N. ; Moya de Guerra, Elvira ; Udías Moinelo, José Manuel | Amer Inst Physics | 2016SuperScaling model (SuSA) predictions to neutrino-induced charged-current pi(+) production in the Delta-resonance region are explored under MiniBooNE experimental conditions. The SuSA charged-current pi(+) results are in good agreement with data[...]texto impreso
Rios, G. ; Gómez Nicola, Ángel ; Hanhart, C. ; Peláez Sagredo, José Ramón | Amer Inst Physics | 2008We review our recent study of the pion mass dependence of the p and a resonances, generated from one-loop SU(2) Chiral Perturbation Theory (ChPT) with the Inverse Amplitude Method (IAM). In order to properly account for the Adler zero region, we[...]texto impreso
We review recent results on properties of the meson gas relevant for Heavy Ion Collision and Nuclear Matter experiments, within the framework of chiral lagrangians. In particular, we describe the temperature and density evolution of the sigma an[...]texto impreso
Castaldini, A. ; Cavallini, A. ; Fraboni, B. ; Fernández Sánchez, Paloma ; Piqueras de Noriega, Javier | Amer Inst Physics | 1997We have investigated the electrical and optical properties of the deep levels responsible for the 1.4-1.5 eV luminescence band usually observed in II-VI compounds. We compared the energy levels found by cathodoluminescence and junction spectrosc[...]
