Search Results - "A.G. Leyva"

Oxygen vacancies and their role on the magnetic character of polycrystalline CeO2 by Paulin, M.A., Alejandro, G., Lamas, D.G., Quintero, M., Fuentes, R.O., Gayone, J.E., Butera, A., Leyva, A.G., Sacanell, J.

“…The structural, electronic and magnetic properties of high purity nanostructured CeO2 powders were investigated under various reducing atmospheres. By…”
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High temperature transport properties of La0.5-xPrxBa0.5CoO3-δ perovskite (x = 0, 0.2, 0.5) by Garcés, D., Leyva, A.G., Mogni, L.V.

“…LnBaCo2O6-δ (Ln = lanthanide) are prospective materials for oxygen separation membranes. These materials show high rates of oxygen surface exchange and…”
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Tuning the magneto-electrical properties of multiferroic multilayers through interface strain and disorder by Sutter, J. Gonzalez, Chávez, A. Sarmiento, Soria, S., Granada, M., Neñer, L., Bengió, S., Granell, P., Golmar, F., Haberkorn, N., Leyva, A.G., Sirena, M.

“…Artificially engineered superlattices were designed and fabricated to induce different growth mechanisms and structural characteristics. DC sputtering was used…”
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Dynamic tuning by hydrostatic pressure of magnetocaloric properties to Ericsson like cycles by Gaztañaga, P., Sacanell, J., Leyva, A.G., Quintero, M.

“…•The use of combined hydrostatic pressure and magnetic field in magnetic refrigeration devices could leave in an increase of the relative cooling power.•This…”
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Growth of (100)-highly textured BaBiO3 thin films on silicon by Ferreyra, C., Marchini, F., Granell, P., Golmar, F., Albornoz, C., Williams, F.J., Leyva, A.G., Rubi, D.

“…We report on the growth and characterization of non-epitaxial but (100)-highly textured BaBiO3 thin films on silicon substrates. We have found the deposition…”
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Manganite based memristors: Influence of the electroforming polarity on the electrical behavior and radiation hardness by Rubi, D., Kalstein, A., Román, W.S., Ghenzi, N., Quinteros, C., Mangano, E., Granell, P., Golmar, F., Marlasca, F.G., Suarez, S., Bernardi, G., Albornoz, C., Leyva, A.G., Levy, P.

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Magnetocaloric Effect in La0.88Sr0.12MnO3 films by Passanante, S., Goijman, D., Linares Moreau, M., Leyva, A.G., Albornoz, C., Rubi, D., Ferreyra, C., Vega, D., Granja, L., Quintero, M.

“…The magnetocaloric effect (MCE) is the isothermal change of entropy and the adiabatic change of temperature that appears in some materials during the…”
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Tuning the electronic properties at the surface of BaBiO 3 thin films by Ferreyra, C., Guller, F., Marchini, F., Lüders, U., Albornoz, C., Leyva, A.G., Williams, F.J., Llois, A.M., Vildosola, V., Rubi, D.

“…The presence of 2D electron gases at surfaces or interfaces in oxide thin films remains a hot topic in condensed matter physics. In particular, BaBiO 3 appears…”
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Removal of Uranium (VI) with Iron Nanoparticles by J. Crespi, N. Quici, E.B. Halac, A.G. Leyva, C.P. Ramos, M. Mizrahi, F.G. Requejo, M. Litter

“…In this work, the removal efficiency of U(VI) from water using commercial nanoparticles of zerovalent iron (nZVI) (NANOFER 25, NANO IRON s.r.o.) and magnetite…”
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Anisotropy and relaxation processes of uniaxially oriented CoFe2O4 nanoparticles dispersed in PDMS by Antonel, P.S., Negri, R.M., Leyva, A.G., Jorge, G.A.

“…When a uniaxial magnetic field is applied to a non-magnetic dispersive medium filled with magnetic nanoparticles, they auto-assemble into thin needles parallel…”
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Magnetic hydrophobic nanocomposites: Silica aerogel/maghemite by Mendoza Zélis, P., Fernández van Raap, M.B., Socolovsky, L.M., Leyva, A.G., Sánchez, F.H.

“…Magnetic hydrophobic aerogels (MHA) in the form of nanocomposites of silica and maghemite (γ-Fe2O3) were prepared by one step sol–gel procedure followed by…”
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Particle sliding in ceramic LaMnO 3 by Salva, H.R., Ghilarducci, A.A., Leyva, A.G., Seiro, S.S.

“…We measured the anelastic spectra of LaMnO 3. An internal friction peak appears at 300–350 K depending on the sample preparation. Two methods of preparation of…”
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Electrical transport properties of manganite powders under pressure by Rodríguez, M.G., Leyva, A.G., Acha, C.

“…We have measured the electrical resistance of micrometric to nanometric powders of the La5/8−yPryCa3/8MnO3 (LPCMO with y=0.3) manganite for hydrostatic…”
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Synthesis and characterization La0.6Sr0.4CoO3 and La0.6Sr0.4Co0.2Fe0.8O3 nanotubes for cathode of solid-oxide fuel cells by SACANELL, J, BELLINO, M. G, LAMAS, D. G, LEYVA, A. G

“…Perovskite-type mixed oxides, such as La1-xSrxCo1-yFeyO3 compounds, are at the present time one of the most widely used materials for cathode of intermediate…”
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Study of magnetic properties of La 2/3Sr 1/3MnO 3 nanotubes by Monte Carlo simulation by Cuchillo, A., Vargas, P., Levy, P., Sánchez, R.D., Curiale, J., Leyva, A.G., Troiani, H.E.

“…Magnetic properties of a single nanotube whose walls are constituted by nanograins of La 2/3Sr 1/3MnO 3 are studied by means of Monte Carlo (MC) simulation…”
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Microwave assisted synthesis of manganese mixed oxide nanostructures using plastic templates by Leyva, A.G., Stoliar, P., Rosenbusch, M., Lorenzo, V., Levy, P., Albonetti, C., Cavallini, M., Biscarini, F., Troiani, H.E., Curiale, J., Sanchez, R.D.

“…The synthesis method for obtaining sub-micrometric structures of rare earth manganese-based mixed oxide compounds is described. Pore wetting of porous…”
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Synthesis and characterization La 0.6Sr 0.4CoO 3 and La 0.6Sr 0.4Co 0.2Fe 0.8O 3 nanotubes for cathode of solid-oxide fuel cells by Sacanell, J., Bellino, M.G., Lamas, D.G., Leyva, A.G.

“…Perovskite-type mixed oxides, such as La 1− x Sr x Co 1− y Fe y O 3 compounds, are at the present time one of the most widely used materials for cathode of…”
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Study of magnetic properties of La2/3Sr1/3MnO3 nanotubes by Monte Carlo simulation by Cuchillo, A., Vargas, P., Levy, P., Sánchez, R.D., Curiale, J., Leyva, A.G., Troiani, H.E.

“…Magnetic properties of a single nanotube whose walls are constituted by nanograins of La2/3Sr1/3MnO3 are studied by means of Monte Carlo (MC) simulation. The…”
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Magnetic interactions in ferromagnetic manganite nanotubes of different diameters by Curiale, J., Sánchez, R.D., Troiani, H.E., Leyva, A.G., Levy, P.

“…In this work we present a magnetic study of La 0.67Sr 0.33MnO 3 (LSMO) and La 0.67Ca 0.33MnO 3 (LCMO) nanotubes with nominal external diameters ( ϕ) of 100,…”
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Pressure effects on nanostructured manganites by Acha, C., Garbarino, G., Leyva, A.G.

“…We have measured the pressure sensitivity of magnetic properties on La 5 / 8 - y Pr y Ca 3 / 8 MnO 3 ( y = 0.3 ) nanostructured powders. Samples were…”
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