|
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 |
|
| 言語種別 | 英語 |
| 発行・発表の年月 | 2019/10/15 |
| 形態種別 | 研究論文 |
| 査読 | 査読あり |
| 標題 | Electronic Structure of UTe2 Studied by Photoelectron Spectroscopy |
| 執筆形態 | その他 |
| 掲載誌名 | JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN |
| 出版社・発行元 | PHYSICAL SOC JAPAN |
| 巻・号・頁 | 88(10),pp.103701-103701 |
| 担当区分 | 責任著者 |
| 著者・共著者 | Shin-ichi Fujimori,Dart Kawasaki,Yukiharu Takeda,Hiroshi Yamagami,Ai Nakamura,Yoshiya Homma,Dai Aoki |
| 概要 | The electronic structure of the unconventional superconductor UTe2 was studied by resonant photoelectron spectroscopy (RPES) and angle-resolved photoelectron spectroscopy (ARPES) with soft X-ray synchrotron radiation. The partial U 5f density of states of UTe2 were imaged by the U 4d-5f RPES and it was found that the U 5f state has an itinerant character, but there exists an incoherent peak due to the strong electron correlation effects. Furthermore, an anomalous admixture of the U 5f states into the Te 5p bands was observed at a higher binding energy, which cannot be explained by band structure calculations. On the other hand, the band structure of UTe2 was obtained by ARPES and its overall band structure were mostly explained by band structure calculations. These results suggest that the U 5f states of UTe2 have itinerant but strongly-correlated nature with enhanced hybridization with the Te 5p states. |
| DOI | 10.7566/JPSJ.88.103701 |
| ISSN | 0031-9015/1347-4073 |
| PermalinkURL | https://journals.jps.jp/doi/pdf/10.7566/JPSJ.88.103701 |