Resonant x-ray emission spectroscopy of multiferroic TbMnO 3

J. M. Chen*, C. K. Chen, T. L. Chou, I. Jarrige, H. Ishii, K. T. Lu, Y. Q. Cai, K. S. Liang, J. M. Lee, S. W. Huang, T. J. Yang, C. C. Shen, R. S. Liu, Jiunn-Yuan Lin, H. T. Jeng, C. C. Kao

*Corresponding author for this work

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12 Scopus citations

Abstract

The Mn 3d valence states in single-crystalline TbMn O3 were probed using x-ray absorption spectroscopy and resonant x-ray emission spectroscopy (RXES). The polarized Mn K -edge x-ray absorption spectra show a strong polarization dependence, particularly for the white line region, indicating the strong anisotropic Mn-O bonding within the ab plane in TbMn O3. The RXES data obtained at the Mn K edge clearly reveal that unoccupied Mn 3d states exhibit a relatively delocalized character, stemming from hybridization of the Mn 3d states with the neighboring Mn 4p orbitals. The authors demonstrated that resonant x-ray emission spectroscopy is able to characterize the degree of localization of the unoccupied states or hole carriers in manganites.

Original languageEnglish
Article number054108
JournalApplied Physics Letters
Volume91
Issue number5
DOIs
StatePublished - 30 Jul 2007

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