Continuous evolution of fermi surface properties above metamagnetic transitions in Cexla1-xRu2Si2

Yuji Matsumoto, Motoki Sugi, Noriaki Kimura, Takemi Komatsubara, Haruyoshi Aoki, Isamu Satoh, Taichi Terashima, Shinya Uji

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17 Citations (Scopus)


We report the de Haas-van Alphen (dHvA) effect studies above metamagnetic transition fields in CexLa1-xRu2Si2. Three dHvA oscillations β′, γ′, and δ are observed for all the samples from x = 0:0 to 1.0. The frequencies and effective masses of these oscillations vary smoothly with the Ce concentration from LaRu 2Si2 to CeRu2Si2. The signal magnitude is reduced only by a factor of approximately 1/10 at most even in alloys with a high concentration of Ce. These behaviors are the same as those observed in the alloys of the compounds with localized f electrons, indicating that the f electron maintains localized nature above the metamagnetic transitions.

Original languageEnglish
Article number053703
JournalJournal of the Physical Society of Japan
Issue number5
Publication statusPublished - 2008 May


  • Alloy
  • CeRuSi
  • dHvA effect
  • f electron nature
  • Metamagnetic transition


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