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Novel features in filled skutterudites containing rare-earth elements with a plural number of 4f-electrons

複数の4f電子を持つ希土類元素を含む充填スクッテルダイト構造物質の新奇な特性

佐藤 英行*; 青木 勇二*; 菊地 大輔*; 菅原 仁*; 髭本 亘; 大石 一城; 伊藤 孝; Heffner, R. H.; Saha, S. R.*; 幸田 章宏*; 佐藤 宏樹*; 西山 樟生; 門野 良典*; 西田 信彦*; Shu, L.*; MacLaughlin, D. E.*

Sato, Hideyuki*; Aoki, Yuji*; Kikuchi, Daisuke*; Sugawara, Hitoshi*; Higemoto, Wataru; Oishi, Kazuki; Ito, Takashi; Heffner, R. H.; Saha, S. R.*; Koda, Akihiro*; Sato, Koki*; Nishiyama, Kusuo; Kadono, Ryosuke*; Nishida, Nobuhiko*; Shu, L.*; MacLaughlin, D. E.*

充填スクッテルダイト構造を持つ物質における強い電子相関に基づく現象は多岐に渡る。特に、複数の4f電子が含まれる場合は軌道の自由度が新たな非磁性又は弱磁性を伴う現象に大きな役割を果たす。Pr系及びSm系充填スクッテルダイト構造物質においてさまざまな例が見いだされており、これらとミュオンスピン緩和実験の関連を紹介する。

Wide varieties of strongly correlated electron phenomena are performed on the stage of a filled skutterudite structure. Especially when one of the players contains a plural number of 4f electrons, the orbital degrees of freedom play a major role as a new type of nonmagnetic and/or weak-magnetic phenomena. Several examples found in Pr- and Sm-based filled skutterudites are introduced in relation to muon spin relaxation experiments.

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パーセンタイル:76.82

分野:Physics, Condensed Matter

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