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Asymmetric phase diagram and phase separation in Pr<inf>0.5-δ</inf>Ca<inf>0.2+δ</inf>Sr<inf>0.3</inf>MnO<inf>3</inf> (-0.04≤δ≤0.04)
ArticleAbstract: We present electric and magnetic properties of polycrystalline Pr0.5-δCa0.2+δSr0.3MnO3, for δ betweePalabras claves:Charge ordering, Magnetic ordering, phase separationAutores:Caneiro A., Dario Niebieskikwiat, Maiorov B., Sánchez R.D.Fuentes:scopusElectronic structure of Sr<inf>2</inf>FeMoO<inf>6</inf>
ArticleAbstract: We have used electron spectroscopies to investigate the electronic structure of the double perovskitPalabras claves:Electron spectroscopies, Magnetically ordered materials, Transition metals and alloysAutores:Abbate M., Caneiro A., Dario Niebieskikwiat, de Siervo A., Gayone J.E., Landers R., Moreno M.S., Sánchez R.D., Zampieri G.Fuentes:scopusEnhancement of the low field magnetoresistance by grain boundary modification in Sr<inf>2</inf>FeMoO<inf>6+δ</inf>
ArticleAbstract: We study the magnetic and electric properties of polycrystalline Sr2FeMoO6+δ with controlled oxygenPalabras claves:Double perovskites, Grain boundaries, MagnetoresistanceAutores:Caneiro A., Dario Niebieskikwiat, Fontcuberta J., Sánchez R.D.Fuentes:scopusNonlinear behavior of V-I curves at low temperatures in nanoparticles of La<inf>2/3</inf>B<inf>1/3</inf>MnO<inf>3</inf> with B = Ca, Sr
ArticleAbstract: We measure voltage-current curves at low temperature in La2/3B1/3MnO3 samples (B=Ca,Sr). The powderPalabras claves:Electrical resistivity, Grain boundaries, TunnelingAutores:Caneiro A., Dario Niebieskikwiat, Hueso L.E., Lamas D.G., López-Quintela M.A., Rivadulla F., Rivas J., Sánchez R.D.Fuentes:scopusHole-doping dependence of percolative phase separation in Pr<inf>0.5-δ</inf>Ca<inf>0.2+δ</inf>Sr<inf>0.3</inf> MnO<inf>3</inf> around half doping
ArticleAbstract: We address the problem of the percolative phase separation in polycrystalline samples of Pr0.5-δCa0.Palabras claves:Autores:Dario Niebieskikwiat, Maiorov B., Morales L., Sánchez R.D.Fuentes:scopusTransport and magnetic properties of nanocrystalline La<inf>2/3</inf>Sr<inf>1/3</inf>MnO<inf>3</inf> powders synthesized by a nitrate-citrate gel-combustion process
ArticleAbstract: We present magnetic and transport properties of nanocrystalline La2/3Sr1/3MnO3 powders prepared follPalabras claves:Low-field magnetoresistance, Nanostructured materials, Spin-polarized tunnelingAutores:Alascio B., Caneiro A., Dario Niebieskikwiat, García D., Lamas D.G., Sánchez R.D.Fuentes:scopusSpin-polarized tunneling in nanostructured La<inf>2/3</inf>Sr<inf>1/3</inf>MnO<inf>3</inf>
ArticleAbstract: We present magnetic and transport properties of nanocrystalline La2/3Sr1/3MnO3 powders prepared by aPalabras claves:Low-field magnetoresistance, Nanostructured materials, Spin-polarized tunnelingAutores:Alascio B., Caneiro A., Dario Niebieskikwiat, García D., Lamas D.G., Sánchez R.D.Fuentes:scopusTopographical characterization of Ar-bombarded Si(1 1 1) surfaces by atomic force microscopy
ArticleAbstract: We used atomic force microscopy to study the topographical changes induced on Si(1 1 1) surfaces byPalabras claves:atomic force microscopy, Ion implantation, silicon, Surface structure, morphology roughness and topographyAutores:Dario Niebieskikwiat, Gayone J.E., Grizzi O., Kaul E., Pregliasco G., Sánchez E.A.Fuentes:scopus