Abstract

Spanish CRG BM25-Spline beamline at The European Synchrotron is running since July 2005. The interdisciplinary and multipurpose beamline takes advantage of wide front-end to run two different, independent and fully equipped branches. Branch A is dedicated to X-Ray Absorption Spectroscopy (XAS) and High Resolution Powder Diffraction (HRPD) and branch B to Surface X-Ray Diffraction (SXD) and Hard X-Ray Photoelectron Spectroscopy (HAXPES).

Spanish and international scientific community are benefited for around 130 days of beamtime from each branch during the year. More than 200 hundred scientists use the Spanish beamline each year to perform experiments. Different areas such as solid-state physics, catalysis, cultural heritage or environmental research fields are covered. BM25-SpLine user community publish more than 40 high-impact peer-reviewed articles annually.

The BM25 in-house research is focused in complex oxide thin films. This talk will be focused in the current study of La_0.7Ca_0.3MnO₃ thin films. This manganite oxide has shown very interesting magnetoresitive properties, which makes it suitable to be implemented in spintronic devices. Polarized XAS experiments have been carried out to study deoxygenated La_0.7Ca_0.3MnO_3-x thin films. Promising results have been obtained in order to elucidate how oxygen vacancies are generated in this oxide. These results have been also correlated with structural, electronic and transport synchrotron based experiments.