Fermi Surface, Magnetic and Superconducting Properties of LaRhIn 5 and CeTIn5 (T: Co, Rh and Ir)

Hiroaki Shishido, Rikio Settai, Dai Aoki, Shugo Ikeda, Hirokazu Nakawaki, Noriko Nakamura, Tomoya Iizuka, Yoshihiko Inada, Kiyohiro Sugiyama, Tetsuya Takeuchi, Kouichi Kindo, Tatsuo C. Kobayashi, Yoshinori Haga, Hisatomo Harima, Yuji Aoki, Takahiro Namiki, Hideyuki Sato, Yoshichika Onuki

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275 Citations (Scopus)


We have studied Fermi surface properties of LaRhIn5 and CeTIn5 (T: Co, Rh and Ir) via the de Haasvan Alphen (dHvA) experiment. The Fermi surface of a non-4f reference compound LaRhIn5 is quasitwo dimensional, reflecting the unique tetragonal crystal structure, which is consistent with the result of FLAWP energy band calculations. The Fermi surface of an antiferromagnet CeRhIn5 is similar to that of LaRhIn5, although the cyclotron mass in CeRhIn5 is roughly by one order larger than that in LaRhIn5. Both Fermi surfaces are, however, different from those of CeCoIn5 and CeIrIn5 which are well explained by the 4f-itinerant band model. The 4f electrons in CeRhIn5 thus do not contribute to the volume of the Fermi surface. We have also studied magnetic and superconducting properties of CeCoIn5 and CeIrIn5.

Original languageEnglish
Pages (from-to)162-173
Number of pages12
JournalJournal of the Physical Society of Japan
Issue number1
Publication statusPublished - 2002 Jan


  • CeTIn (T: Co, Rh, Ir)
  • Fermi surface
  • Heavy fermions
  • LaRhIn
  • Non-Fermi liquid
  • Superconductivity


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