Role of <i>p</i>– <i>f</i> Hybridization in the Metal–Nonmetal Transition of PrRu₄P₁₂

• Iwasa Kazuaki

  Department of Physics, Tohoku University

• Hao Lijie

  Department of Physics, Tohoku University

• Hasegawa Tomoo

  Department of Physics, Tohoku University

• Takagi Toshiaki

  Department of Physics, Tohoku University

• Horiuchi Kenji

  Department of Physics, Tohoku University

• Mori Yoshiaki

  Department of Physics, Tohoku University

• Murakami Youichi

  Department of Physics, Tohoku University

• Kuwahara Keitaro

  Department of Physics, Tokyo Metropolitan University

• Kohgi Masahumi

  Department of Physics, Tokyo Metropolitan University

• Sugawara Hitoshi

  Department of Mathematical and Natural Sciences, The University of Tokushima

• Saha Shanta Ranjan

  Muon Science Laboratory, Institute of Material Structure Science, High Energy Accelerator Research Organization

• Aoki Yuji

  Department of Physics, Tokyo Metropolitan University

• Sato Hideyuki

  Department of Physics, Tokyo Metropolitan University

書誌事項

タイトル別名

• Role of p- f Hybridization in the Metal-Nonmetal Transition of PrRu4P12

抄録

Electronic state evolution in the metal–nonmetal transition of PrRu₄P₁₂ has been studied by X-ray and polarized neutron diffraction experiments. It has been revealed that, in the low-temperature nonmetallic phase, two inequivalent crystal-field (CF) schemes of Pr³⁺ 4f² electrons with Γ₁ and Γ₄⁽²⁾ ground states are located at Pr1 and Pr2 sites forming the bcc unit cell surrounded by the smaller and larger cubic Ru-ion sublattices, respectively. This modulated electronic state can be explained by the p–f hybridization mechanism taking two intermediate states of 4f¹ and 4f³. The p–f hybridization effect plays an important role in the electronic energy gain in the metal–nonmetal transition originated from the Fermi surface nesting.

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ

  Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ 74 (7), 1930-1933, 2005

  一般社団法人 日本物理学会

キーワード

• metal–nonmetal transition
• Fermi surface nesting
• crystal-field state
• <I>p</I>–<I>f</I> hybridization

詳細情報

• CRID: 1390282679164719744
• NII論文ID: 210000105530
• NII論文ID: 110001979643
• NII書誌ID: AA00704814
• DOI: 10.1143/jpsj.74.1930
• BIBCODE: 2005JPSJ...74.1930I
• ISSN: 13474073
• ISSN: 00319015
• NDL書誌ID: 7356903
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7356903
• Web Site: https://journals.jps.jp/doi/pdf/10.1143/JPSJ.74.1930
• 本文言語コード: en
• データソース種別:
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