Electronic Structure of Perovskite Oxides, $LaMO_3$ (M = Ti-Ni), from High-Energy Electron Spectroscopic Investigations

Sarma, DD and Chainani, A (1994) Electronic Structure of Perovskite Oxides, $LaMO_3$ (M = Ti-Ni), from High-Energy Electron Spectroscopic Investigations. In: Journal of Solid State Chemistry, 111 (1). pp. 208-216.

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Abstract

We study the electronic structure of the $LaMO_3$ (M = Ti-Ni) perovskite oxides as probed by various high-energy electron spcctroscopics. These spcctroscopic 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, $U_{dd}$, the charge transfer energy, A, 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 $LaMO_3$, with specific reference to semiconductor-metal transitions.

Item Type:	Journal Article
Publication:	Journal of Solid State Chemistry
Publisher:	Elsevier
Additional Information:	Copyright of this article belongs to Elsevier.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	20 Sep 2006
Last Modified:	19 Sep 2010 04:31
URI:	http://eprints.iisc.ac.in/id/eprint/8695

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