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dc.contributor.authorAlexandrescu, R.-
dc.contributor.authorBouzas, V.-
dc.contributor.authorCosto, Rocío-
dc.contributor.authorGarcía García-Tuñón, Miguel Ángel-
dc.contributor.authorMorales, M. P.-
dc.contributor.authorSerna Pereda, Carlos J.-
dc.contributor.authorVeintemillas-Verdaguer, S.-
dc.identifier.citationAIP Conference Proceedings1275: 22-25 (2010)es_ES
dc.description4 páginas, 1 figura, 1 tabla.-- PACS: 81.20.-n, 42.62.-b, 75.47.Lx, 75.50.Tt, 82.30.Lp.-- et al.-- Comunicación presentada al Bonsai Project Symposium on Breakthroughs in Nanoparticles for Bio-Imaging.es_ES
dc.description.abstractThe laser pyrolysis technique was employed in the production of magnetic iron oxide nanometric powders due to its capability of producing highly homogeneous nanoparticles in continuous form. This technique consists of the laser-driven rapid heating of an iron precursor in vapor phase in presence of oxygen. Different samples were prepared by changing the experimental conditions of synthesis. We found that high crystallinities and good magnetic properties are attained at high density of the laser power and strong oxidation. By the contrary, softer conditions using low laser densities and soft oxidation conditions give in general smaller and poorly ordered nanoparticles. The particles obtained were in the range of 2 to 9 nm in diameter (TEM). All of them were superparamagnetic at room temperature with saturation magnetization values in the interval of 4–38 emu/g-sample. The samples consist in Fe2O3 maghemite with carbon as the main impurity present on the surface in the form of C = O bonds.es_ES
dc.description.sponsorshipThis work was supported by the STREP FP6 E.U. Project Bio-Imaging with Smart Functional Nanoparticles (BONSAI) Nº LSHB-CT-2006-037639.es_ES
dc.publisherAmerican Institute of Physicses_ES
dc.subjectLaser pyrolysises_ES
dc.subjectIron 0xidees_ES
dc.titleIron oxide materials produced by laser pyrolysises_ES
dc.typecomunicación de congresoes_ES
dc.description.peerreviewedPeer reviewedes_ES
Appears in Collections:(ICV) Comunicaciones congresos
(ICMM) Comunicaciones congresos
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