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Resonant inelastic X-ray scattering at Ba-L$$_{3}$$ edge in BaTiO$$_{3}$$

Yoshii, Kenji ; Jarrige, I.; Matsumura, Daiju  ; Nishihata, Yasuo; Suzuki, Chikashi ; Ito, Yoshiaki*; Mukoyama, Takeshi*; Tochio, Tatsunori*; Shinotsuka, Hiroshi*; Fukushima, Sei*

Resonant X-ray inelastic scattering experiments have been performed at the Ba-L$$_{3}$$ edge in ferroelectric BaTiO$$_{3}$$ using synchrotron radiation at the BL15XU of SPring-8. An X-ray absorption spectrum of this material was found to be broader than non-ferroelectric BaSO$$_{4}$$. Molecular orbital calculations showed the formation of Ba-O bands in BaTiO$$_{3}$$, suggesting an important role of the Ba-O hybridization in the ferroelectric transition of this material. X-ray emission spectra at the edge showed a localized character of Ba-5d orbitals in BaTiO$$_{3}$$ in spite of the hybridization with O-3p. A few possible applications of the measurement will be also discussed.

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Category:Physics, Applied

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