Y Kuwata, S Suga, S Imada, A Sekiyama, S Ueda, T Iwasaki, H Harada, T Muro, T Fukawa, K Ashida, H Yoshioka, T Terauchi, J Sameshima, H Kuwahara, Y Moritomo, Y Tokura
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 88 281-285, Mar, 1998
We have investigated the electronic structures of perovskite manganese oxides, Nd(0.5)Sr(0.5)MnO(3), (Nd(0.062)Sm(0.938))(0.5)Sr(0).(5)MnO(3), La(0.84)Sr(0.16)MnO(3) and La(0.7)Ca(0.3)MnO(3), by X-ray photoemission (XPS) and X-ray bremsstrahlung isochromat spectroscopy in addition to vacuum ultraviolet inverse photoemission. It is found that the VUV-IPES spectra seem to be well explained by the band-structure calculation. Mn 3p-3d resonance photoemission measurements have also been performed, where the contributions of the occupied Mn 3d states are extracted. We observed hybridization between the Mn 3d and O 2p states from the Mn 2p and 3p spectra of all samples, and the Mn spin state from the Mn 3s XPS spectra of Nd(0.5)Sr(0.5)MnO(3) and (Nd(0.062)Sm(0.938))(0.5)Sr(0.5)MnO(3). (C) Elsevier Science B.V. (C) 1998 Elsevier Science B.V.