Energy-dispersive X-ray absorption spectroscopy at LNLS : investigation on strongly correlated metal oxides.
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2010
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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. 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.
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High pressure
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CEZAR, J. C. et al. Energy-dispersive X-ray absorption spectroscopy at LNLS : investigation on strongly correlated metal oxides. Journal of Synchrotron Radiation, v. 17, n. 1, p. 93-102, 2010. Disponível em: <http://hal.archives-ouvertes.fr/docs/00/44/37/30/PDF/Cezar-JSR10.pdf>. Acesso em: 26 nov. 2012.