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Electronic structure of La 0.7 Ce 0.3 MnO 3 thin film
Author(s) -
Han S. W.,
Lee J. D.,
Kim K. H.,
Mitra C.,
Jeong J. I.,
Kim K. J.,
Kim B. S.,
Min B. I.,
Kim J. H.,
Wi S. C.,
Kang J.S.
Publication year - 2004
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200304606
Subject(s) - x ray absorption spectroscopy , electronic structure , valence (chemistry) , absorption spectroscopy , chemistry , ion , spectral line , photoemission spectroscopy , spectroscopy , atomic orbital , x ray photoelectron spectroscopy , thin film , coulomb , analytical chemistry (journal) , crystallography , materials science , physics , computational chemistry , nuclear magnetic resonance , nanotechnology , organic chemistry , quantum mechanics , astronomy , electron , chromatography
The electronic structure of epitaxial thin films of La 0.7 Ce 0.3 MnO 3 (LCeMO) has been investigated using photoemission spectroscopy (PES) and X‐ray absorption spectroscopy (XAS). The measured valence‐band PES, Ce 3d PES, and Ce 3d XAS spectra for LCeMO consistently indicate that the localized Ce 4f orbitals are almost unoccupied so that the Ce valence is nearly tetravalent. The Mn 2p XAS spectrum suggests Mn 2+ and Mn 3+ mixed‐valent states of Mn ions in LCeMO. The LSDA + U calculation agrees better with the measured PES/XAS spectra than the LSDA calculation (U: the on‐site Coulomb interaction). (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)