XPES studies of oxides of second- and third-row transition metals including rare earths

Sarma, DD and Rao, CNR (1980) XPES studies of oxides of second- and third-row transition metals including rare earths. In: Journal of Electron Spectroscopy and Related Phenomena, 20 (1). pp. 25-45.

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Abstract

X-ray photoelectron spectroscopy has been employed to investigate oxides of second- and third-row transition metals, including those of rare earths. Systematics in the spin—orbit splittings and binding energies of core levels of the metals are described. In most of the cases studied, the dependence of the spin—orbit splittings on the atomic number Z is given by the relation ΔE = a(Z - Z0)4, where a is the quantum defect parameter and Z0 is the effective screening. Core-level binding energies are found to increase with the oxidation state of the metal. Most of the core-level binding energies are related to the atomic number Z by the expression E = x(Z - Z0)2, giving rise to linear plots of ln E versus ln Z. Specific features of individual oxides, with respect to satellites, multiplet structure, configuration mixing, and other properties are also discussed. The spectra of PrO2, Pr6O11, TbO2 and Tb4O7 are reported for the first time.

Item Type:	Journal Article
Publication:	Journal of Electron Spectroscopy and Related Phenomena
Publisher:	Elsevier Science B.V
Additional Information:	Copyright of this article belongs to ElsevierScience B.V.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	09 Feb 2010 10:25
Last Modified:	19 Sep 2010 05:38
URI:	http://eprints.iisc.ac.in/id/eprint/21615

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