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- Yoshiuchi Shingo
- Graduate School of Science, Osaka University
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- Toda Masatoshi
- Graduate School of Science, Osaka University
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- Matsushita Masaki
- Graduate School of Science, Osaka University
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- Yasui Shinichi
- Graduate School of Science, Osaka University
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- Hirose Yusuke
- Graduate School of Science, Osaka University
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- Ohya Masahiro
- Graduate School of Science, Osaka University
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- Katayama Keisuke
- Graduate School of Science, Osaka University
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- Honda Fuminori
- Graduate School of Science, Osaka University
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- Sugiyama Kiyohiro
- Graduate School of Science, Osaka University
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- Hagiwara Masayuki
- KYOKUGEN, Osaka University
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- Kindo Koichi
- ISSP, University of Tokyo
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- Takeuchi Tetsuya
- Low Temperature Center, Osaka University
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- Yamamoto Etsuji
- Advanced Science Research Center, Japan Atomic Energy Agency
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- Haga Yoshinori
- Advanced Science Research Center, Japan Atomic Energy Agency
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- Settai Rikio
- Graduate School of Science, Osaka University
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- Tanaka Toshiki
- Department of Physics, College of Humanities and Sciences, Nihon University
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- Kubo Yasunori
- Department of Physics, College of Humanities and Sciences, Nihon University
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- Onuki Yoshichika
- Graduate School of Science, Osaka University Advanced Science Research Center, Japan Atomic Energy Agency
書誌事項
- タイトル別名
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- Heavy Fermion State in YbIr<SUB>2</SUB>Zn<SUB>20</SUB>
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抄録
We measured the high-field magnetization and de Haas–van Alphen (dHvA) oscillations for YbIr2Zn20 with a cubic crystal structure, together with the electrical resistivity and magnetic susceptibility. The magnetic susceptibility χ with an effective magnetic moment of Yb3+ becomes temperature-independent at low temperatures, with a broad peak at Tχmax=7.4 K for H||‹110›. The corresponding magnetization indicates a metamagnetic transition at Hm=120 kOe, consistent with a Tχmax vs Hm relation in the Ce- and U-based heavy fermion compounds. The large cyclotron masses of 4–27 m0 are detected in the dHvA experiment, and are found to be reduced at magnetic fields higher than Hm=120 kOe. The resistivity follows the Fermi liquid relation ρ=ρ0+AT2 under magnetic field, and the \\sqrtA value is also found to have a maximum at Hm as a function of magnetic field. From the present experimental results, together with the results of 4f-itinerant energy band calculations, the 4f electrons are found to contribute to the heavy fermion state in YbIr2Zn20.
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 78 (12), 123711-123711, 2009
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
- 1390001204196796416
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- NII論文ID
- 130005437192
- 210000108111
- 40016879638
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- NII書誌ID
- AA00704814
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 10480126
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可