| ID | 117927 |
| タイトル別表記 | f Electron Hybridized States and Optical Conductivity in Ce and Yb Compounds at High Pressures
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| 著者 |
大原, 繁男
名古屋工業大学
Bauer, Eric D.
Los Alamos National Laboratory
大貫, 惇睦
琉球大学|理化学研究所
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| キーワード | high pressure
optical conductivity
f electron states
intermediate valence
CeRhIn5
YbNi3Ga9
YbCu2Ge2
diamond anvil cell
infrared synchrotron radiation
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| 資料タイプ |
学術雑誌論文
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| 抄録 | A review is given on our recent optical conductivity [σ(ω)] studies for heavy fermion Ce and Yb compounds under high pressure. Diamond anvil cells were used to generate high pressures and synchrotron radiation at SPring-8 was used as a bright infrared source. In the measured σ(ω) spectra, a marked peak is observed in the mid-infrared range due to a high density of 4f-derived states near the Fermi level. The infrared peak exhibits significant shifts toward high and low energies in Ce and Yb systems, respectively. These opposite tendencies in Ce and Yb systems are discussed in terms of pressure-induced shifts of the 4f level, and in terms of the electron-hole symmetry.
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| 掲載誌名 |
高圧力の科学と技術
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| ISSN | 0917639X
13481940
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| cat書誌ID | AN10452913
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| 出版者 | 日本高圧力学会
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| 巻 | 32
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| 号 | 1
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| 開始ページ | 42
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| 終了ページ | 50
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| 発行日 | 2022-03-01
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| 備考 | 特集：高圧力が織りなす4f電子の世界
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| EDB ID | |
| 出版社版DOI | |
| 出版社版URL | |
| フルテキストファイル | |
| 言語 |
jpn
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| 著者版フラグ |
出版社版
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| 部局 |
理工学系
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