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State of bismuth in $BaBiO_3$ and $BaBi_{1-x}Pb_xO_3$: $Bi 4f$ photoemission and $Bi L_3$ absorption spectroscopic studies

Kulkarni, GU and Vijayakrishnan, V and Rao, Ranga G and Seshadri, Ram and Rao, CNR (1990) State of bismuth in $BaBiO_3$ and $BaBi_{1-x}Pb_xO_3$: $Bi 4f$ photoemission and $Bi L_3$ absorption spectroscopic studies. In: Applied Physics Letters, 57 (17). pp. 1823-1824.

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Abstract

The 2p 6d feature in the $Bi L_3$ spectra has different energies in the semiconducting $(0.0\leq x<0.7)$ and the superconducting (x=0.75) compositions of $BaBi_{1-x}Pb_xO_3$. The Bi 4f core level spectrum shows distinct features ascribable to Bi III and Bi V in $BaBiO_3$ and in the semiconducting compositions; the width of the 4f peaks is also considerably larger in these compositions compared to that in $BaBi_{0.25}Pb_{0.75}O_3$, which shows a single sharp Bi 4f feature.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to American Institute of Physics.
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 30 Jul 2007
Last Modified: 19 Sep 2010 04:38
URI: http://eprints.iisc.ernet.in/id/eprint/11615

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