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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 | 2020/04/15 |
| 形態種別 | 研究論文 |
| 査読 | 査読あり |
| 標題 | Electronic Structure of Trivalent Compound EuPd3 Studied by Soft X-ray Angle-resolved Photoemission 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 | 89(4),pp.044704-044704 |
| 担当区分 | 責任著者 |
| 著者・共著者 | Tkuto Kawasaki,Masaaki Kobata,Shin-ichi Fujimori,Yukiharu Takeda,Hiroshi Yamagami,Ai Nakamura,Wataru Iha,Masato Hedo,Takao Nakama,Yoshichika Onuki |
| 概要 | EuPd3 is a rare Eu-based compound, whose Eu ions are in a trivalent state. The electronic structure of EuPd3 was investigated by angle-resolved photoemission spectroscopy (ARPES) using soft x rays. Eu3+ components arising from the 4f(5) final state multiplet were clearly observed in the valence spectra, and no Eu2+ components were observed within experimental accuracy, confirming a robust Eu3+ state. The band structure and Fermi surfaces revealed by the ARPES measurements were compared to band structure calculations based on the density-functional theory for LaPd3 and YPd3. We found that the calculation for LaPd3 provides a better description for our ARPES results. The effective electron masses estimated from the ARPES spectra near the Fermi level are in good agreement with the corresponding cyclotron effective masses in previous de Haas-van Alphen experiments. |
| DOI | 10.7566/JPSJ.89.044704 |
| ISSN | 0031-9015/1347-4073 |
| PermalinkURL | https://journals.jps.jp/doi/pdf/10.7566/JPSJ.89.044704 |