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arXiv · 0711.3162

Investigation of unoccupied electronic states of LaCoO$_3$ and PrCoO$_3$ using inverse photoemission spectroscopy and GGA + $U$ calculations

S. K. Pandey·Ashwani Kumar·S. Banik·A. K. Shukla·S. R. Barman·A. V. Pimpale
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Abstract

The unoccupied electronic states of LaCoO$_3$ and PrCoO$_3$ are studied using room temperature inverse photoemission spectroscopy and \emph{ab initio} GGA+$\emph{U}$ band structure calculations. A fairly good agreement between experiment and theory is obtained. The intensity of the peak just above the Fermi-level is found to be very much sensitive to the hybridization of Co 3$d$ and O 2$p$ orbitals. Moreover, the band just above the Fermi-level is of Co 3$d$ character with little contribution from O 2$p$ states.

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S. K. Pandey, Ashwani Kumar, S. Banik, A. K. Shukla, S. R. Barman, A. V. Pimpale. 2007-11-20. Investigation of unoccupied electronic states of LaCoO$_3$ and PrCoO$_3$ using inverse photoemission spectroscopy and GGA + $U$ calculations. https://doi.org/10.1103/physrevb.77.113104

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