Universal Scaling in the Dynamical Conductivity of Heavy Fermion Ce and Yb Compounds
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- Watanabe Tatsuya
- Graduate School of Science and Technology, Kobe University
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- Matsunami Masaharu
- Graduate School of Science and Technology, Kobe University
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- Nishihara Tomohisa
- Graduate School of Science and Technology, Kobe University
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- Tsujii Naohito
- National Institute for Materials Science
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- Ebihara Takao
- Department of Physics, Faculty of Science, Shizuoka University
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- Sugawara Hitoshi
- Faculty of Integrated Arts and Sciences, University of Tokushima
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- Sato Hideyuki
- Graduate School of Science, Tokyo Metropolitan University
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- Onuki Yoshichika
- Graduate School of Science, Osaka University
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- Isikawa Yosikazu
- Department of Physics, Toyama University
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- Takabatake Toshiro
- Graduate School of Quantum Matter, Hiroshima University
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- Nanba Takao
- Graduate School of Science and Technology, Kobe University
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説明
Dynamical conductivity spectra [σ(ω)] have been measured for many heavy-fermion (HF) Ce and Yb compounds. A characteristic excitation peak has been observed in the infrared region of σ(ω) for all the compounds, and has been analyzed in terms of a simple model based on conduction (c)–f electron hybridized band. A universal scaling is found between the observed peak energies and the estimated c–f hybridization strengths of these HF compounds. This scaling demonstrates that the model of c–f hybridized band can generally and quantitatively describe the low-energy charge excitations in a wide range of HF compounds.
収録刊行物
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- Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｐｈｙｓｉｃａｌ Ｓｏｃｉｅｔｙ ｏｆ Ｊａｐａｎ
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Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｐｈｙｓｉｃａｌ Ｓｏｃｉｅｔｙ ｏｆ Ｊａｐａｎ 76 (2), 023703-023703, 2007
一般社団法人 日本物理学会
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詳細情報 詳細情報について
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- CRID
- 1390001204195455232
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- NII論文ID
- 130005296722
- 110006203496
- 210000106523
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- NII書誌ID
- AA00704814
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 8639937
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- 本文言語コード
- en
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