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NMR study of Pr$$T_2$$Al$$_{20}$$ ($$T$$=Ti, V)

Tokunaga, Yo  ; Sakai, Hironori   ; Kambe, Shinsaku  ; Sakai, Akito*; Nakatsuji, Satoru*

In this study, we have performed $$^{27}$$Al NMR/NQR measurements for Pr$$T_2$$Al$$_{20}$$ ($$T$$=Ti, V). $$^{27}$$Al NMR spectra have been measured in a temperature range between 1.4 and 300 K, and the temperature dependence of the Knight shift $$K$$ has been extracted for Al(2) and Al(3). Then, from the so-called $$K$$ vs $$chi$$ plot, the hyperfine coupling constants ($$A_{hf}$$) has been estimated for each site in each compound. A large $$A_{hf}$$ obtained for Al(3) indicates the strong hybridization between Pr and Al-cage. In addition, the stronger hybridization in PrV$$_2$$Al$$_{20}$$ than in PrTi$$_2$$Al$$_{20}$$ is confirmed from the $$A_{hf}$$ values.

Language

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Japanese

Journal

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新学術領域研究「重い電子系の形成と秩序化」ワークショップ; カゴ状構造に宿る強相関物性

Held date

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2012/09

Location (city)

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八王子

Location (country)

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日本

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Keywords

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no keyword

Research Facility

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第4研究棟  

Press Release

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Article of JAEA R&D Review

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Cooperating Institute

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Accesses

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- Accesses

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