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Report No.

Temperature and polarization dependence of Fe L$$_{3}$$-edge X-ray absorption spectra of LuFe$$_{2}$$O$$_{4}$$

Agui, Akane; Mizumaki, Masaichiro*; Kuroda, Tomoko*; Kawai, Masahiro*; Nagata, Tomoko*; Ikeda, Naoshi*; Uozumi, Takayuki*

In this paper, we report on the study of the temperature dependence of Fe L$$_{3}$$-edge X-ray absorption spectra (XAS) of LuFe$$_{2}$$O$$_{4}$$. In the charge ordered state the valence of Fe is in Fe$$^{2+}$$ and Fe$$^{3+}$$. And the Fe L$$_{3}$$-edge XAS spectra have double peak structure which is attributed the Fe$$^{2+}$$ and Fe$$^{3+}$$ state. In high temperature, the double peak structure becomes indistinct because the thermal excited state overlaps while the Fe valence keeping the integer number.



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