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Resonant X-ray scattering study on the filled skutterudite PrFe$$_4$$P$$_{12}$$

Ishii, Kenji; Inami, Toshiya; Murakami, Yoichi; Hao, L.*; Iwasa, Kazuaki*; Kogi, Masafumi*; Aoki, Yuji*; Sugawara, Hitoshi*; Sato, Hideyuki*; Imada, Shin*; Nakao, Hironori*; Sawa, Hiroshi*; Wakabayashi, Yusuke*

Resonant x-ray scattering study was carried out to investigate an anomalous ordered state ($$T_A$$ = 6.5 K) in the filled skutterudite PrFe$$_4$$P$$_{12}$$. At the Pr-$$L_{III}$$ absorption edge, we observed resonant features in $$h+k+l$$ = odd reflections, which are forbidden in the $$bcc$$ structure above $$T_A$$. Because these reflections contain the difference of anomalous scattering factor between two Pr atoms in the $$bcc$$ unit cell, and the ordered state is attributed to the ordering of two different electronic states of Pr.



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Category:Physics, Condensed Matter



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