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Rare earth substitution effects in multiferroic RFe$$_{2}$$O$$_{4}$$ (R: rare earths)

Yoshii, Kenji  ; Matsumura, Daiju   ; Endo, Naruki; Saito, Hiroyuki; Yoneda, Yasuhiro   ; Nishihata, Yasuo; Funae, Takeshi*; Ejiri, Hiroki*; Kano, Jun*; Kobayashi, Tatsuo*; Ikeda, Naoshi*

We have investigated the substitution effects at the rare-earth (R) site in multiferroic RFe$$_{2}$$O$$_{4}$$ (R: Y, Ho-Lu) to explore a new phase of this system. From EXAFS measurements for the R atoms, the large R$$^{3+}$$ ions (such as Dy$$^{3+}$$) was partially substituted in RFe$$_{2}$$O$$_{4}$$. Powder X-ray diffraction showed that this material had a single-phase RFe$$_{2}$$O$$_{4}$$-type structure (space group R-3m). The simulated EXAFS spectrum reproduced the characteristics of the experimental spectrum, confirming that R$$^{3+}$$ is actually settled at the rare earth site. The other results, such as the magnetic properties, will be reported at the conference.

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English

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1st Conference on Light and Particle Beams in Materials Science 2013 (LPBM 2013)

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2013/08

Location (city)

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Tsukuba

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Japan

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Press Release

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Article of JAEA R&D Review

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