Search Results - "Sánchez, F H"

Magnetic properties study of iron-oxide nanoparticles/PVA ferrogels with potential biomedical applications by Mendoza Zélis, P., Muraca, D., Gonzalez, J. S., Pasquevich, G. A., Alvarez, V. A., Pirota, K. R., Sánchez, F. H.

“…A study of the magnetic behavior of maghemite nanoparticles (NPs) in polyvinyl alcohol (PVA) polymer matrices prepared by physical cross-linking is reported…”
Get full text

Influence of post-pyrolysis treatment on physicochemical properties and acid medium stability of magnetic carbon nanocomposites by Burbano, A. A., Medina, G. A. Muñoz, Sánchez, F. H., Lassalle, V. L., Horst, M. F., Gascó, G., Méndez, A.

“…This study presents the preparation of magnetic carbon nanocomposites (MCNCs) through a two-step procedure: (i) in situ co-precipitation of magnetite (Fe 3 O 4…”
Get full text

Synthesis of highly stable Fe/FeOx@citrate colloids with strong magnetic response by mechanochemistry and coprecipitation for biomedical and environmental applications by Muñoz Medina, G.A., Fernández van Raap, M.B., Coral, D.F., Muraca, D., Sánchez, F.H.

“…•Iron cores of 30–40 nm are produced easily by a suitable mechano-chemical process.•Cores are coated with a thin iron oxide shell by chemical…”
Get full text

Dipolar interactions among magnetic dipoles of iron oxide particles dispersed in mili-size hydrogel beads by Actis, D.G., Muñoz Medina, G.A., Velásquez, A.A., Pereda, C., Sanchez, L.M., Alvarez, V.A., Muñetón Arboleda, D., Mendoza Zélis, P., Sánchez, F.H.

“…•PVA/iron oxide milli-size beads were synthesized by means of a one-pot route.•Effective demagnetizing factor (NE) is tested in beads and superstructures of…”
Get full text

Appearance of room-temperature ferromagnetism in Cu-doped TiO2-δ films by DUHALDE, S, VIGNOLO, M. F, GOLMAR, F, CHILIOTTE, C, RODRIGUEZ TORRES, C. E, ERRICO, L. A, CABRERA, A. F, RENTERFA, M, SANCHEZ, F. H, WEISSMANN, M

Get full text

Magnetic and structural study of Fe doped tin dioxide by Bilovol, V., Mudarra Navarro, A.M., Rodríguez Torres, C.E., Sánchez, F.H., Cabrera, A.F.

“…The structural and magnetic properties of Fe 10 at% doped SnO 2 powders milled for different times have been investigated. XAS results demonstrate the dilution…”
Get full text

Extrinsic origin of ferromagnetism in single crystalline LaAlO3 substrates and oxide films by Golmar, F., Mudarra Navarro, A. M., Rodríguez Torres, C. E., Sánchez, F. H., Saccone, F. D., dos Santos Claro, P. C., Benítez, G. A., Schilardi, P. L.

“…Commercial LaAlO3 substrates were thermally cycled simulating a procedure similar to those followed during TiO2 and SnO2 dilute magnetic semiconductors’ film…”
Get full text

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…”
Get full text

Thermal behavior for a nanoscale two ferromagnetic phase system based on random anisotropy model by Muraca, D., Sánchez, F.H., Pampillo, L.G., Saccone, F.D.

“…Advances in theory that explain the magnetic behavior as function of temperature for two phase nanocrystalline soft magnetic materials are presented. The…”
Get full text

The role of the dopant in the magnetism of Fe-doped SnO2 films by Torres, C.E. Rodríguez, Errico, L., Golmar, F., Navarro, A.M. Mudarra, Cabrera, A.F., Duhalde, S., Sánchez, F.H., Weissmann, M.

“…Transparent pure and Fe-doped SnO2 thin films were grown by pulsed laser deposition technique on LaAlO3 substrates. X-ray diffraction shows that the films are…”
Get full text

Mechanosynthesis of Fe-doped SnO2 nanoparticles by CABRERA, A. F, MUDARRA NAVARRO, A. M, RODRIGUEZ TORRES, C. E, SANCHEZ, F. H

“…Fe-doped nanosized SnO2 powders were prepared by mechanosynthesis using rutile SnO2 and hematite Fe2O3 as starting materials. The estimated grain size of the…”
Get full text

Influence of thermal treatments on phase formation and magnetic behaviour in metal transition doped TiO2 by CABRERA, A. F, ERRICO, L, RODRIGUEZ TORRES, C. E, SANCHEZ, F. H

“…Transition metal doped TiO2 samples, with nominal composition TM5(TiO2)95 (TM=Mn, Fe, Co and Ni), were obtained by thermal treatment at 673, 773 and 973K in…”
Get full text

Exchange bias and anomalous vertical shift of the hysteresis loops in milled Fe/MnO2 material by PASSAMANI, E. C, LARICA, C, MARQUES, C, PROVETI, J. R, TAKEUCHI, A. Y, SANCHEZ, F. H

“…The present article reports studies on structural and magnetic properties of nanostructured Fe/MnO2 materials prepared by mechanosynthesis method, with Fe to…”
Get full text

The relationship between magnetic behaviour and local structure around Fe ions in Fe-doped TiO2 rutile by MUDARRA NAVARRO, A. M, BILOVOL, V, CABRERA, A. F, RODRIGUEZ TORRES, C. E, SANCHEZ, F. H

Get full text

Magnetic and structural study of Cu-doped TiO2 thin films by RODRIGUEZ TORRES, C. E, GOLMAR, F, CABRERA, A. F, ERRICO, L, MUDARRA NAVARRO, A. M, RENTERIA, M, SANCHEZ, F. H, DUHALDE, S

“…Transparent pure and Cu-doped (2.5, 5 and 10at.%) anatase TiO2 thin films were grown by pulsed laser deposition technique on LaAlO3 substrates. The samples…”
Get full text

Study of Fe-doped rutile TiO2 alloys obtained by mechanical alloying by CABRERA, A. F, RODRIGUEZ TORRES, C. E, ERRICO, L, SANCHEZ, F. H

“…Mixed TiO2-alpha-Fe2O3 powders with 10at% of Fe were prepared by high-energy ball milling. The influence of the preparation method was studied by Mossbauer…”
Get full text

XAS study of the local environment of impurities in doped TiO2 thin films by RODRIGUEZ TORRES, C. E, CABRERA, A. F, ERRICO, L. A, DUHALDE, S, RENTERIA, M, GOLMAR, F, SANCHEZ, F. H

“…In this work, we present an X-ray absorption spectroscopy (XAS) characterization of the local environment of the impurity in room temperature ferromagnetic…”
Get full text

Synthesis and magnetic properties of iron oxide–silica aerogel nanocomposites by Fernández van Raap, M.B., Sanchez, F.H., Leyva, A.G., Japas, M.L., Cabanillas, E., Troiani, H.

“…Iron oxide–silica nanocomposite aerogels were produced by sol–gel procedure followed by the hypercritical evaporation of the solvent. Aerogels hosting…”
Get full text

Surface magnetic contribution in zinc ferrite thin films studied by element- and site-specific XMCD hysteresis-loops by Mendoza Zélis, P., Pasquevich, G.A., Salcedo Rodríguez, K.L., Sánchez, F.H., Rodríguez Torres, C.E.

“…Element- and site-specific magnetic hysteresis-loops measurements on a zinc ferrite (ZnFe2O4) thin film were performed by X-ray magnetic circular dichroism…”
Get full text

Thermal stability and magnetic properties of FeSiB amorphous alloy by NUNES, E, PEREIRA, R. D, FREITAS, J. C. C, PASSAMANI, E. C, LARICA, C, FERNANDES, A. A. R, SANCHEZ, F. H

“…It is well known that magnetic amorphous materials, in particular the commercial metallic glass ribbons, have good soft magnetic properties, such as: low…”
Get full text