Fermi surface properties of ferromagnetic CeRu2Ge2

Haruhisa Ikezawa, Haruyoshi Aoki, Masahiro Takashita, Christopher J. Haworth, Sinya Uji, Taichi Terashima, Kunihiko Maezawa, Rikio Settai, Yoshichika Onuki

研究成果: Article査読

16 被引用数 (Scopus)


We have performed a dHvA effect study on the ferromagnetic heavy fermion compound CeRu2Ge2. Six spin-split dHvA frequency branches are observed in the (100) and (110) planes. The angular dependence of the dHvA frequencies is mostly consistent with the result reported by King and Lonzarich (KL), except that we have successfully observed the dHvA signal from a large hole surface for fields parallel to [001] and a new low-frequency branch. The effective masses measured for fields in the (001) plane agree with those of KL and do not depend on field strength. On the other hand, those for fields parallel to [001] differ considerably from those of KL and are found to decrease with increasing field. Moreover, the measured effective mass of the large hole surface is less than half of the value expected from the electronic specific heat coefficient.

ジャーナルPhysica B: Condensed Matter
出版ステータスPublished - 1997 7月

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 電子工学および電気工学


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