Heavy fermions and unconventional superconductivity in high-quality single crystals of rare-earth and actinide compounds

希土類及びアクチノイド化合物高純度単結晶における重い電子状態と異方的超伝導

大貫 惇睦; 摂待 力生*; 杉山 清寛*; 竹内 徹也*; 本多 史憲*; 芳賀 芳範   ; 山本 悦嗣  ; 松田 達磨; 立岩 尚之   ; 青木 大*; Sheikin, I.*; 播磨 尚朝*

Onuki, Yoshichika; Settai, Rikio*; Sugiyama, Kiyohiro*; Takeuchi, Tetsuya*; Honda, Fuminori*; Haga, Yoshinori; Yamamoto, Etsuji; Matsuda, Tatsuma; Tateiwa, Naoyuki; Aoki, Dai*; Sheikin, I.*; Harima, Hisatomo*

Characteristics of heavy fermion and unconventional superconductivity in rare-earth and actinide compounds are clarified by the de Haas-van Alphen experiments. The effect of pressure on the electronic states of CeRhIn, CeIrSi and YbIrZn is studied in magnetic fields. An electronic instability occurs under pressure in these compounds.