Search Results - "Martı́nez Boubeta, C."

Large magnetoresistance in Fe/MgO/FeCo(001) epitaxial tunnel junctions on GaAs(001) by Bowen, M., Cros, V., Petroff, F., Fert, A., Martı́nez Boubeta, C., Costa-Krämer, J. L., Anguita, J. V., Cebollada, A., Briones, F., de Teresa, J. M., Morellón, L., Ibarra, M. R., Güell, F., Peiró, F., Cornet, A.

“…We present tunneling experiments on Fe(001)/MgO(20 Å)/FeCo(001) single-crystal epitaxial junctions of high quality grown by sputtering and laser ablation…”
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Magnetic separation of hematite-coated Fe₃O₄ particles used as arsenic adsorbents by Simeonidis, K, Gkinis, Th, Tresintsi, S, Martinez-Boubeta, C, Vourlias, G, Tsiaoussis, I, Stavropoulos, G, Mitrakas, M, Angelakeris, M

“…Ball-milling of magnetite powder is studied as a potential method to produce large quantities of nanostructured particles for As(III) and As(V) adsorption…”
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Epitaxial Fe/MgO heterostructures on GaAs(0 0 1) by Martı́nez Boubeta, C., Navarro, E., Cebollada, A., Briones, F., Peiró, F., Cornet, A.

“…Epitaxy of high quality Fe/MgO heterostructures on GaAs(0 0 1) substrates has been achieved by combined use of sputtering and laser ablation deposition…”
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Ferromagnetism in transparent thin films of MgO by Martínez-Boubeta, C., Beltrán, J. I., Balcells, Ll, Konstantinović, Z., Valencia, S., Schmitz, D., Arbiol, J., Estrade, S., Cornil, J., Martínez, B.

“…We show both theoretical and experimental evidences of the appearance of ferromagnetism in MgO thin films. First-principles calculations allow predicting the…”
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Possible d(0) ferromagnetism in MgO by Beltran, J I, Monty, C, Balcells, Ll, Martinez-Boubeta, C

“…We study the impact of vacancies on the magnetism of MgO and TiO(2) nanoparticles, and develop fist- principle calculations to ascertain the origin of the…”
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Airborne magnetic nanoparticles may contribute to COVID-19 outbreak: Relationships in Greece and Iran by Martinez-Boubeta, C., Simeonidis, K.

“…This work attempts to shed light on whether the COVID-19 pandemic rides on airborne pollution. In particular, a two-city study provides evidence that PM2.5…”
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Aging of magnetic properties in MgO films by Balcells, Ll, Beltrán, J. I., Martínez-Boubeta, C., Konstantinović, Z., Arbiol, J., Martínez, B.

“…In this work we report on the magnetic behavior of MgO thin films prepared by sputtering. A severe aging process of the ferromagnetic properties is detected in…”
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Resistance switching in transparent magnetic MgO films by Jambois, O., Carreras, P., Antony, A., Bertomeu, J., Martínez-Boubeta, C.

“…We have studied the abrupt and hysteretic changes of resistance in MgO-based capacitor devices. The switching behavior is discussed in terms of the formation…”
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Blue luminescence at room temperature in defective MgO films by Martínez-Boubeta, C., Martínez, A., Hernández, S., Pellegrino, P., Antony, A., Bertomeu, J., Balcells, Ll, Konstantinović, Z., Martínez, B.

“…Luminescence spectroscopy has been used to characterize MgO films prepared by rf-sputtering. A clear correlation is found between the appearance of an emission…”
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Magnetic nanoparticles: An indicator of health risks related to anthropogenic airborne particulate matter by Kermenidou, M., Balcells, Ll, Martinez-Boubeta, C., Chatziavramidis, A., Konstantinidis, I., Samaras, T., Sarigiannis, D., Simeonidis, K.

“…Due to their small dimensions, airborne particles are able to penetrate through inhalation into many human organs, from the lungs to the cardiovascular system…”
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Coverage effects on the magnetism of Fe/MgO(001) ultrathin films by MARTINEZ BOUBETA, C, CLAVERO, C, GARCIA-MARTIN, J. M, ARMELLES, G, CEBOLLADA, A, BALCELLS, Ll, MENENDEZ, J. L, PEIRO, F, COMET, A, TONEY, Michael F

“…Different aspects of the structure-magnetism and morphology-magnetism correlation in the ultrathin limit are studied in epitaxial Fe films grown on MgO(001)…”
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Development of iron-based nanoparticles for Cr(VI) removal from drinking water by Simeonidis, K., Tziomaki, M., Angelakeris, M., Martinez-Boubeta, C., Balcells, Ll, Monty, C., Mitrakas, M., Vourlias, G., Andritsos, N.

“…A great deal of research over recent decades has been motivated by the requirement to lower the concentration of chromium in drinking water. This study has…”
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In vitro application of Fe/MgO nanoparticles as magnetically mediated hyperthermia agents for cancer treatment by Chalkidou, A., Simeonidis, K., Angelakeris, M., Samaras, T., Martinez-Boubeta, C., Balcells, Ll, Papazisis, K., Dendrinou-Samara, C., Kalogirou, O.

“…In this work we study the heating efficiency of Fe/MgO magnetic core/biocompatible shell nanoparticles and their in vitro application in magnetic hyperthermia…”
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Exploiting redox reaction mediated by Fe3O4 nanoparticles to control Cr(VI) presence in drinking water by Asimakidou, T., Kalaitzidou, K., Tsingenopoulou, Z., Martinez-Boubeta, C., Venegas-Gomez, A., Teran, F. J., Balcells, Lluis, Simeonidis, K.

“…Public and authorities concern about the worldwide intensity and the long-term health risks arising by the presence of hexavalent chromium in drinking water…”
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Controlling Magnetization Reversal and Hyperthermia Efficiency in Core–Shell Iron–Iron Oxide Magnetic Nanoparticles by Tuning the Interphase Coupling by Simeonidis, K, Martinez-Boubeta, C, Serantes, D, Ruta, S, Chubykalo-Fesenko, O, Chantrell, R, Oró-Solé, J, Balcells, Ll, Kamzin, A. S, Nazipov, R. A, Makridis, A, Angelakeris, M

“…Magnetic particle hyperthermia, in which colloidal nanostructures are exposed to an alternating magnetic field, is a promising approach to cancer therapy…”
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Critical radius for exchange bias in naturally oxidized Fe nanoparticles by Martínez-Boubeta, C., Simeonidis, K., Angelakeris, M., Pazos-Pérez, N., Giersig, M., Delimitis, A., Nalbandian, L., Alexandrakis, V., Niarchos, D.

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Magneto-optical light scattering from ferromagnetic surfaces by González, M. U., Armelles, G., Martı́nez Boubeta, C., Cebollada, A.

“…We have studied the optical and magneto-optical components of the light scattered by the surface of several Fe films with different morphologies. We present a…”
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Magnetotransport properties of spin-valve structures with Mg spacer layers by Martinez-Boubeta, C., Ferrante, Y., Parkin, S. S. P.

“…A theoretical prediction by Wang et al. [Phys. Rev. B 82, 054405 (2010)] suggests the preferential transmission of majority-spin states with Δ1 symmetry across…”
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Controlled synthesis and phase characterization of Fe-based nanoparticles obtained by thermal decomposition by Simeonidis, K., Mourdikoudis, S., Moulla, M., Tsiaoussis, I., Martinez-Boubeta, C., Angelakeris, M., Dendrinou-Samara, C., Kalogirou, O.

“…Iron oxide nanoparticles were synthesized by the thermal decomposition of Fe(acac) 3 and Fe(CO) 5. Three different homogeneous procedures were used for the…”
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Tunneling spectroscopy in core/shell structured Fe/MgO nanospheres by Martínez-Boubeta, C., Balcells, Ll, Monty, C., Ordejon, P., Martínez, B.

“…We report on tunneling conductance properties of a single Fe island enclosed by an epitaxial MgO shell. The results obtained show clear oscillations in the…”
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