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/