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Navegando DEFIS - Artigos publicados em periódicos por Autor "Alonso, Jose Antonio"
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Item Energy-dispersive X-ray absorption spectroscopy at LNLS : investigation on strongly correlated metal oxides.(2010) Cezar, Júlio Criginski; Souza Neto, Narcizo Marques; Piamonteze, Cínthia; Tamura, Edilson; Garcia, Flávio; Carvalho, Edson José de; Neueschwander, Régis T.; Ramos, Aline Y.; Tolentino, Hélio César Nogueira; Caneiro, Alberto; Massa, Nestor E.; Martinez Lope, Maria Jesus; Alonso, Jose Antonio; Itie, Jean PaulAn 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. The beamline performance is then illustrated through two case studies on strongly correlated transition metal oxides: an XMCD insight into the modifications of the magnetic properties of Cr-doped manganites and the structural deformation in nickel perovskites under high applied pressure.