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ヤマガミ ヒロシ
YAMAGAMI HIROSHI
山上 浩志 所属 京都産業大学 理学部 物理科学科 職種 教授 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2008/10 |
| 形態種別 | 研究論文 |
| 査読 | 査読あり |
| 標題 | Observation of 5f electrons in the itinerant limit: Three-dimensional electronic structure of UB2 |
| 執筆形態 | その他 |
| 掲載誌名 | PHYSICAL REVIEW B |
| 出版社・発行元 | AMER PHYSICAL SOC |
| 巻・号・頁 | 78(16) |
| 担当区分 | 責任著者 |
| 著者・共著者 | Takuo Ohkochi,Shin-ichi Fujimori,Hiroshi Yamagami,Tetsuo Okane,Yuji Saitoh,Atsushi Fujimori,Yoshinori Haga,Etsuji Yamamoto,Yoshichika Onuki |
| 概要 | We have derived the three-dimensional band structure and Fermi surfaces of itinerant uranium compound UB(2) by soft x-ray angle-resolved photoelectron spectroscopy. We have observed clear energy dispersions and Fermi surfaces with large contribution from the U 5f states. The obtained results have been compared with the result of band-structure calculation within the local-density-functional approximation as well as the results of de Haas-van Alphen (dHvA) study. The qualitative agreement has been obtained in the size and topology of the Fermi surfaces with the band-structure calculation and the dHvA measurement. Meanwhile, their band structure near the Fermi level is slightly different from the calculation. This might be due to a dynamic renormalization beyond the local-density approximation band calculations even in the very itinerant 5f compound. |
| DOI | 10.1103/PhysRevB.78.165110 |
| ISSN | 2469-9950/2469-9969 |