PHYSICAL REVIEW B 99, 165101 (2019) Valence band hard x-ray photoelectron spectroscopy on 3d transition-metal oxides containing rare-earth elements

D. Takegami,1 L. Nicolaï,2 T. C. Koethe,3 D. Kasinathan,1 C. Y. Kuo,1,4 Y. F. Liao,4 K. D. Tsuei,4 G. Panaccione,5 F. Offi,6 G. Monaco,7,* N. B. Brookes,7 J. Minár,2 and L. H. Tjeng1 1Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Straße 40, 01187 Dresden, Germany 2New Technologies-Research Center, University of West Bohemia, Univerzitni 8, 306 14 Pilsen, Czech Republic 3Institute of Physics II, University of Cologne, Zülpicher Straße 77, 50937 Cologne, Germany 4National Synchrotron Radiation Research Center (NSRRC), 101 Hsin-Ann Road, 30076 Hsinchu, Taiwan 5TASC Laboratory, IOM-CNR, Area Science Park, S.S.14, Km 163.5, I-34149 Trieste, Italy 6CNISM and Dipartimento di Scienze, Università Roma Tre, Via della Vasca Navale 84, I-00146 Rome, Italy 7European Synchrotron Radiation Facility, BP220, 38043 Grenoble, France