Photoemission spectra and band structure calculations of Ca1-xSrxRuO3

We studied the electronic structure of Ca1-xSrxRuO3 series using photoemission spectroscopy (PES). The experimental spectra were compared to LMTO band structure calculations. In a first approximation, the PES spectra reflect the occupied electronic states in the valence band. The spectra present the...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2004-12, Vol.354 (1-4), p.39-42
Main Authors: MANICA, J, ABBATE, M, GUEVARA, J. A, CUFFINI, S. L
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electron and ion emission by liquids and solids
impact phenomena
Electron density of states and band structure of crystalline solids
Electron states
Exact sciences and technology
Photoemission and photoelectron spectra
Physics
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Summary:We studied the electronic structure of Ca1-xSrxRuO3 series using photoemission spectroscopy (PES). The experimental spectra were compared to LMTO band structure calculations. In a first approximation, the PES spectra reflect the occupied electronic states in the valence band. The spectra present the Ru 4d band just below the Fermi level and the O 2p band at larger energies. The presence of a Fermi edge in the Ru 4d band region confirms that these materials are metallic. The relative intensity of the Ru 4d band in SrRuO3 is slightly larger than in CaRuO3 this can be related to the observed differences in the magnetic properties of these compounds.
ISSN:0921-4526
DOI:10.1016/j.physb.2004.09.016