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Transition metal oxide perovskites by photoelectron and x-ray absorption spectroscopy

Madhusudan, WH and Kollali, Sheelavathi and Sarode, PR and Hegde, MS and Ganguly, P and Rao, CNR (1979) Transition metal oxide perovskites by photoelectron and x-ray absorption spectroscopy. In: Pramana - Journal of Physics, 12 (4). pp. 317-329.

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Abstract

X-ray and ultraviolet photoelectron spectroscopy as well as x-ray absorption spectroscopy have been employed to investigate transition metal oxide perovskites of the general formula ABOs (A=La or rare-earth ion, B=trivalent transition metalion). Systematics in the core levels and in the valence bands in the series of LaBOa compounds have been discussed. Lanthanum chemical shifts in the x-ray absorption spectra in this series show interesting trends. Photoelectron spectra of the solid solutions, LaNil_x Coxes, LaNix_x FexO8 and LaFel_x Coxes show that the rigid band model is applicable to these systems. It is shown that x-ray photoelectron spectroscopy can be employed to identify multiple oxidation states of transition metal ions in oxide perovskites.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Indian Academy of Sciences.
Keywords: Photoelectron spectroscopy; ESCA; x-ray (K, LIn) absorption spectra;transition metal oxides; perovskites
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 28 Dec 2010 05:50
Last Modified: 28 Dec 2010 05:50
URI: http://eprints.iisc.ernet.in/id/eprint/33786

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