dHvA Effect Study of Metamagnetic Transition in CeRu2Si2(2)The State above the Metamagnetic Transition

DOI Web Site Web Site BIBCODE 被引用文献40件 参考文献46件
  • Takashita Masahiro
    Institute of Materials Science, University of Tsukuba, Tsukuba, Ibaraki 305 Tsukuba Magnet Laboratories, National Research Institute for Metals, Tsukuba, Ibaraki 305
  • Aoki Haruyoshi
    Tsukuba Magnet Laboratories, National Research Institute for Metals, Tsukuba, Ibaraki 305
  • Terashima Taichi
    Tsukuba Magnet Laboratories, National Research Institute for Metals, Tsukuba, Ibaraki 305
  • Uji Shinya
    Tsukuba Magnet Laboratories, National Research Institute for Metals, Tsukuba, Ibaraki 305
  • Maezawa Kunihiko
    Department of Liberal Arts and Sciences, Toyama Prefectural University, Kosugi, Toyama 939–03
  • Settai Rikio
    Faculty of Science, Osaka University, Osaka 560
  • Onuki Yoshichika
    Faculty of Science, Osaka University, Osaka 560

書誌事項

タイトル別名
  • dHvA Effect Study of Metamagnetic Transition in CeRu<SUB>2</SUB>Si<SUB>2</SUB> II - The State above the Metamagnetic Transition
  • dHvA Effect Study of Metamagnetic Trans
  • dHvA Effect Study of Metamagnetic Transition in CeRu<sub><b>2</b></sub>Si<sub><b>2</b></sub>II - The State above the Metamagnetic Transition
公開日
1996
DOI
  • 10.1143/jpsj.65.515
公開者
一般社団法人 日本物理学会

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説明

We have performed an extensive dHvA effect study of CeRu2Si2 to gain more insight into the nature of the metamagnetic transition. The angular dependence of the dHvA frequencies confirms the transition of the Fermi surfaces from those of the itinerant f electron below the metamagnetic transition field (Hm) to those of the localized f electron above Hm. The field dependence of the frequencies and effective masses are measured for all the frequencies observed with fields parallel to [001]. A waveform analysis suggests that the Fermi surfaces of the up and down spin electrons are similar in size, whereas the effective masses are significantly different. The amplitudes of the dHvA oscillations and their field dependence are anomalous above Hm, implying that the dHvA oscillations above Hm may possibly come from a state which is not well developed near Hm.

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