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

J.C. CESAR; C. ROSSIGNOLM. SOUZA NETO; C. PIAMONTESE; E. TAMURA; F. GARCIA; E. CARVALHO; R.T. NEUESCHWANDER; A.Y. RAMOS; H.C.N. TOLENTINO; A. CANEIRO; N.E. MASSA; M. J. MARTINEZ-LOPE; J.A. ALONSO; J.P. ITIÉ

JOURNAL OF SYNCHROTRON RADIATION

WILEY-BLACKWELL PUBLISHING, INC

Lugar: Singapur; Año: 2010 vol. 17 p. 93 - 102

0909-0495

An energy-dispersive X-ray absorption spectroscopy beamline mainly dedicatedto X-ray magnetic circular dichroism (XMCD) and material science underextreme conditions has been implemented in a bending-magnet port at theBrazilian Synchrotron Light Laboratory. Here the beamline technicalcharacteristics are described, including the most important aspects of themechanics, optical elements and detection set-up. The beamline performance isthen illustrated through two case studies on strongly correlated transition metaloxides: an XMCD insight into the modifications of the magnetic properties ofCr-doped manganites and the structural deformation in nickel perovskites underhigh applied pressure