Evolution of electronic states in the Kondo alloy system Yb1-xLuxB12
Physical Review B - Condensed Matter and Materials Physics 56 巻 21 号
13 727-13 720 頁
1997-12-01 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Evolution of electronic states in the Kondo alloy system Yb1-xLuxB12
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| 作成者 |
Susaki Tomofumi
Konishi Takehisa
Sekiyama Akira
Mizokawa Takashi
Fujimori Atsushi
Iwasaki Takeshi
Ueda Shigenori
Matsushita Tomohiro
Suga Shigemasa
Ishii Hiroyoshi
Iga Fumitoshi
Kasaya Mitsuo
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| 収録物名 |
Physical Review B - Condensed Matter and Materials Physics
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| 巻 | 56 |
| 号 | 21 |
| 開始ページ | 13 727 |
| 終了ページ | 13 720 |
| 抄録 |
We have studied the effect of Lu substitution on the Kondo insulator YbB12 by high-resolution photoemission. Comparison of the spectra of YbB12, Yb0.5Lu0.5B12, and LuB12 reveals that the density of states (DOS) of the B sp-derived conduction band near the Fermi level is reduced in YbB12 over a rather wide (∼ 40 meV) energy region. Lu substitution (i) recovers the reduced B sp DOS, (ii) shifts the Yb 4f-derived Kondo peak towards higher binding energy, and (iii) decreases the Yb valence. These results are consistently analyzed using the Anderson-impurity model, and imply interaction between the Yb 4f ions mediated by the Yb 4f-B sp hybridization in YbB12.
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
American Physical Society
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| 発行日 | 1997-12-01 |
| 権利情報 |
Copyright (c) 1997 American Physical Society.
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| 出版タイプ | Version of Record（出版社版。早期公開を含む） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 0163-1829
[DOI] 10.1103/PhysRevB.56.13727
[NCID] AA11187113
[DOI] http://dx.doi.org/10.1103/PhysRevB.56.13727
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