Bonding effects and electronics states in Ba sub(1-x)Sr sub(x)TiO sub(3) system

X-ray emission spectra in stoichiometrically high purity Ba sub(1-x)Sr sub(x)TiO sub(3) (x = 0 to 1) powder have been investigated because of the poor understanding of the physics of electronic structure in such systems. The Sr K beta emission band was found to contain two bands around 15.88 and 16....

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Published in:Japanese Journal of Applied Physics, Part 2: Letters Part 2: Letters, 1993-01, Vol.32 (1A), p.195-197
Main Authors: Acharya, Bhabani Sankar, Rajeev, Pradhan, Laxmidhar
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Pradhan, Laxmidhar
description X-ray emission spectra in stoichiometrically high purity Ba sub(1-x)Sr sub(x)TiO sub(3) (x = 0 to 1) powder have been investigated because of the poor understanding of the physics of electronic structure in such systems. The Sr K beta emission band was found to contain two bands around 15.88 and 16.15 keV attributed to K beta sub(1) and K beta sub(3) respectively. The Ti K beta emission spectra were found to shift towards low energy side with the increase in Sr concentration. The binding energy (BE) of L level remains unchanged with the Sr concentration. From these observations it has been possible to conclude that change in the stoichiometry of the compound does not change the process of multiple ionization or core hole-electron interaction. Further for Ti K beta emission, it has been possible to say that 4p states of Ti hybridizes with 2p states of oxygen and this hybridization decreases with the increase in vacancies in the system. This results in pushing up the Fermi level E sub(f).
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title Bonding effects and electronics states in Ba sub(1-x)Sr sub(x)TiO sub(3) system
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