Energy-dispersive X-ray absorption spectroscopy at LNLS: investigation on strongly correlated metal oxides

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 characterist...

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Detalles Bibliográficos
Autores principales: Cezar, Júlio C., Souza-Neto, Narcizo M., Piamonteze, Cínthia, Tamura, Edilson, Garcia, Flávio, Carvalho, Edson J., Neueschwander, Régis T., Ramos, Aline Y., Tolentino, Hélio C. N., Caneiro, Alberto, Massa, Néstor Emilio, Martínez-Lope, María Jesús, Alonso, José Antonio, Itié, Jean Paul
Formato: Articulo
Lenguaje:Inglés
Publicado: 2010
Materias:
Ciencias Exactas
Química
XAS
XMCD
high pressure
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/127393
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
Descripción
Sumario: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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