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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 | 2005/08 |
| 形態種別 | 研究論文 |
| 査読 | 査読あり |
| 標題 | Itinerant 5f electrons and the Fermi surface properties in an enhanced Pauli paramagnet NpGe3 |
| 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 | 74(8),pp.2149-2152 |
| 著者・共著者 | D Aoki,H Yamagami,Y Homma,Y Shiokawa,E Yamamoto,A Nakamura,Y Haga,R Settai,Y Onuki |
| 概要 | We succeeded in growing a high-quality single crystal of an enhanced Pauli paramagnet, NpGe3, by the Bi-flux method, and observed the de Haas-van Alphen (dHvA) effect. The topology of a Fermi surface is well explained by the relativistic linear augmented-plane-wave (LAPW) band calculations based on the 5f itinerant band model. The Fermi surface consists of a nearly spherical electron-Fermi surface with necks along the (100) direction, forming a hollow ball, centered at the R point, which is derived from the single band. The cyclotron effective mass is in the range from 2.6 to 16m(o), which is enhanced approximately 3.5 times from the corresponding band:mass. |
| DOI | 10.1143/JPSJ.74.2149 |
| ISSN | 0031-9015 |