Electronic structure of perovskite oxides, LaMO3 (M=Ti-Ni), from high-energy electron spectroscopic investigations

Sarma, D. D. ; Chainani, A. (1994) Electronic structure of perovskite oxides, LaMO3 (M=Ti-Ni), from high-energy electron spectroscopic investigations Journal of Solid State Chemistry, 111 (1). pp. 208-216. ISSN 0022-459

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1006/jssc.1994.1219

Abstract

We study the electronic structure of the LaMO3 (M=Ti-Ni) perovskite oxides as probed by various high-energy electron spectroscopics. These spectroscopic studies, in conjunction with model many-body calculations, provide important information concerning the ground state character of these oxides. In particular, the on-site Coulomb interaction strength, Udd, the charge transfer energy, Δ, and the transfer integral between the metal 3d and oxygen 2p states, t , have been estimated. These parameters are found to exhibit a systematic variation across the series. Electronic structure of the perovskites is discussed in terms of electron-removal and electron-addition spectra for the parent compound as well as for doped LaMO3, with specific reference to semiconductor-metal transitions.

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ID Code:46300
Deposited On:04 Jul 2011 06:47
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