|
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 | 2016 |
| 形態種別 | 研究論文 |
| 査読 | 査読あり |
| 標題 | Thermoelectric power quantum oscillations in the ferromagnet UGe2 |
| 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 | 93(15),pp.155120 |
| 著者・共著者 | A. Palacio Morales,A. Pourret,G. Knebel,G. Bastien,V. Taufour,D. Aoki,H. Yamagami,J. Flouquet |
| 概要 | We present thermoelectric power and resistivity measurements in the ferromagnet UGe2 as a function of temperature and magnetic field. At low temperature, huge quantum oscillations are observed in the thermoelectric power as a function of the magnetic field applied along the a axis. The frequencies of the extreme orbits are determined and an analysis of the cyclotron masses is performed following different theoretical approaches for quantum oscillations detected in the thermoelectric power. They are compared to those obtained by Shubnikov-de Haas experiments on the same crystal and previous de Haas-van Alphen experiments. The agreement of the different probes confirms thermoelectric power as an excellent probe to extract simultaneously both microscopic and macroscopic information on the Fermi surface properties. Band structure calculations of UGe2 in the ferromagnetic state are compared to the experiment. |
| DOI | 10.1103/PHYSREVB.93.155120 |
| ISSN | 2469-9950/2469-9969 |
| Put Code(ORCID) | 71588939 |
| PermalinkURL | https://publons.com/publon/12238951/ |