Recent advances in the magnetism and superconductivity of heavy fermion systems

Yoshichika Onuki, Rikio Settai, Kiyohiro Sugiyama, Tetsuya Takeuchi, Tatsuo Kobayashi, Yoshinori Haga, Etsuji Yamamoto

Research output: Contribution to journalArticle

126 Citations (Scopus)

Abstract

We present recent advances in the magnetism and superconductivity of rare earth and uranium compounds. Heavy fermions are formed on the basis of the competition between the RKKY interaction and the Kondo effect in these compounds. The application of pressure to these compounds is useful to control the electronic states in the antiferromagnets CeRh2Si2 and CeRhIn5, and the ferromagnet UGe2. The quadrupole interaction or the quadrupole Kondo effect is found to be responsible for heavy fermions in PrFe4P12. A rich variety of superconducting properties are demonstrated: superconductivity of CeCoIn5 and CeRhIn5 in the vicinity of a quantum critical point, coexistence of ferromagnetism and superconductivity in UGe2, and superconductivity based on the quadrupole fluctuations in PrOs4Sb12, together with the relation between the superconducting transition temperature and the quasi-two dimensionality of the electronic states.

Original languageEnglish
Pages (from-to)769-787
Number of pages19
JournalJournal of the Physical Society of Japan
Volume73
Issue number4
DOIs
Publication statusPublished - Apr 2004
Externally publishedYes

Fingerprint

heavy fermion systems
superconductivity
quadrupoles
Kondo effect
fermions
uranium compounds
rare earth compounds
electronics
ferromagnetism
critical point
transition temperature
interactions

Keywords

  • Anisotropic superconductivity
  • De Haas-van Alphen effect
  • Fermi surface
  • Heavy fermions
  • Kondo effect
  • Quadrupole interaction
  • RKKY interaction
  • Strongly correlated electron systems

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Recent advances in the magnetism and superconductivity of heavy fermion systems. / Onuki, Yoshichika; Settai, Rikio; Sugiyama, Kiyohiro; Takeuchi, Tetsuya; Kobayashi, Tatsuo; Haga, Yoshinori; Yamamoto, Etsuji.

In: Journal of the Physical Society of Japan, Vol. 73, No. 4, 04.2004, p. 769-787.

Research output: Contribution to journalArticle

Onuki, Yoshichika ; Settai, Rikio ; Sugiyama, Kiyohiro ; Takeuchi, Tetsuya ; Kobayashi, Tatsuo ; Haga, Yoshinori ; Yamamoto, Etsuji. / Recent advances in the magnetism and superconductivity of heavy fermion systems. In: Journal of the Physical Society of Japan. 2004 ; Vol. 73, No. 4. pp. 769-787.
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