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O LIVRO-OBJETO E AS NARRATIVAS HÍBRIDA, MULTIMODAL E CROSSOVER

Pereira, Cláudia Sousa; Navas, Diana; Garcia, Flávio

Pode-se dizer também que esses objetos de qualidade estética, e por isso são corpora dos estudos contidos neste dossiê, objetos a que convencionamos chamar, quando ainda têm o formato parecido com o de um livro, de livros-objeto, alcançaram o grande objetivo dos estudiosos de literatura que, no ambiente tangencial, mas não exclusivo da formação de educadores, pedagogos, professores, sempre tiveram como sua ambi...


Energy-dispersive X-ray absorption spectroscopy at LNLS : investigation on stro...

Cezar, Júlio Criginski; Souza Neto, Narcizo Marques; Piamonteze, Cínthia; Tamura, Edilson; Garcia, Flávio; Carvalho, Edson José de

An energy-dispersive X-ray absorption spectroscopy beamline mainly dedicated to X-ray magnetic circular dichroism (XMCD) and material science under extreme conditions has been implemented in a bending-magnet port at the Brazilian Synchrotron Light Laboratory. Here the beamline technical characteristics are described, including the most important aspects of the mechanics, optical elements and detection set-up. T...

Date: 2012   |   Origin: Oasisbr

Tailoring magnetic vortices in nanostructures.

Garcia, Flávio; Westfahl Junior, Harry; Carvalho, Edson José de; Melo, Mariana Pojar de; Santos, Antonio Domingues dos; Schoenmaker, Jeroen

Tailoring the properties of magnetic vortices through the preparation of structured multilayers is discussed. The dependence of the vortex core radius r on the effective anisotropy is derived within a simple model, which agrees with our simulations. As the perpendicular anisotropy increases, r also increases until a perpendicular magnetization appears in the disk rim. Co/Pt multilayer disks were studied; x-ray ...

Date: 2012   |   Origin: Oasisbr

Magnetic ZnFe2O4 nanoferrites studied by X-ray magnetic circular dichroism and ...

Garcia, Flávio

Agradecimentos: We thank S.G. Marchetti and J.F. Bengoa for sample preparation. SJS, SJAF, MBS, FGR thank CONICET, Argentina. SJS also thanks CBPF/MCT, Brazil. This work was partially supported by LNLS, Campinas, SP, Brazil (Proposal # D06A-DXAS # 4349/01), ANPCYT (under PICT # 06-17492) and Fundación Antorchas (Argentina); Abstract: ZnFe2O4 nanoparticles (6 nm) were synthesized by hydrothermal methods. Subsequ...

Date: 2007   |   Origin: Oasisbr

A simple route to the synthesis of high-quality NiO nanoparticles

Meneses, Cristiano Teles de, 1977-; Garcia, Flávio

Agradecimentos: This work was supported by the Brazilian funding agencies: CNPq (project 470939/2003-6), FUNCAP and CAPES. The authors would like to thank the Laboratory of Electron Microscopy at Laboratório Nacional de Luz Síncrotron (LNLS) for the SEM measurements and Gelita for supplying the gelatin; Abstract: Dispersed nickel oxide nanoparticles were obtained by a simple and low-cost method using a mixture ...

Date: 2007   |   Origin: Oasisbr


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