Photoemission studies on (1 1 1) textured Cr doped Eu 2O 3 thin film

摘要

AbstractThe electronic properties of (1 1 1) oriented Cr doped Eu2O3thin film has been studied using the x ray absorption and photoemission spectroscopic techniques. Cr-2pcore level XPS and Cr-Ledge XAS results confirm the 3+?ionic state of Cr, that precludes the formation of Cr metal clusters in the film. The modification in the electronic structure due to Cr doping is probed by the resonant photoemission spectroscopy measurements using variable photon energy sources at Eu 4d?→?4fand Cr 3p?→?3dphoto absorption region. The valence band spectra (at 145?eV) shows drastic change in the intensity of feature close to Fermi level along with an additional feature in Cr doped film when compared with the valence band spectra of the undoped film.Graphical abstractDisplay OmittedHighlights?Pulsed laser growth of Cr doped Eu2O3thin films.?Structural characterizations are carried out using XRD and Raman's spectroscopy measurements.?The ionic state of Cr is confirmed by the XPS and XAS measurements.?A drastic enhancement level is observed in the feature close to Fermi level.?Cr doping has induced magnetic ordering in the film.]]>