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Investigation of hole-doped insulating $La_{1-x}Sr_xCrO_3$ by soft-x-ray absorption spectroscopy

Sarma, DD and Maiti, K and Vescovo, E and Carbone, C and Eberhardt, W and Rader, O and Gudat, W (1996) Investigation of hole-doped insulating $La_{1-x}Sr_xCrO_3$ by soft-x-ray absorption spectroscopy. In: Physical Review B, 53 (20). 13369 -13373.

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We report x-ray absorption spectra at the $Cr L_{2,3}$ and oxygen K edges from $La_{1-x}Sr_xCrO_3$ for several values of x. Various spectral features observed are interpreted in terms of transitions to states with different symmetries. The results show that the doped holes are localized with primarily Cr d character, suggesting the formation of local $Cr^{4+}$ -like configurations, arising from the Mott-Hubbard insulating nature of the parent stoichiometric compound. These results are discussed in relation to the transport properties.

Item Type: Journal Article
Publication: Physical Review B
Publisher: American Physical Society
Additional Information: Copyright of this article belongs to American Physical Society.
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 16 Mar 2007
Last Modified: 19 Sep 2010 04:35
URI: http://eprints.iisc.ac.in/id/eprint/9769

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