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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 | 2011/06 |
| 形態種別 | 研究論文 |
| 査読 | 査読あり |
| 標題 | Band structure and Fermi surface of URu2Si2 studied by soft x-ray angle-resolved photoemission spectroscopy |
| 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 | 83(23) |
| 担当区分 | 責任著者 |
| 著者・共著者 | Ikuto Kawasaki,Shin-ichi Fujimori,Yukiharu Takeda,Tetsuo Okane,Akira Yasui,Yuji Saitoh,Hiroshi Yamagami,Yoshinori Haga,Etsuji Yamamoto,Yoshichika Onuki |
| 概要 | We have performed angle-resolved photoelectron spectroscopy experiments in the soft x-ray region in order to clarify the band structure and Fermi surfaces (FSs) of URu2Si2. In the vicinity of the Fermi level, U 5f-derived quasiparticle bands were clearly observed. They form a small and a large hole FS centered at the Z point and a large electron FS centered at the Gamma point. The overall band structure as well as the FSs are explained by a band structure calculation treating all U 5f electrons as being itinerant. The observed FSs have nesting vectors which give a possible explanation for the spin fluctuations observed by inelastic neutron scattering measurements. |
| DOI | 10.1103/PhysRevB.83.235121 |
| ISSN | 2469-9950/2469-9969 |