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Superconductivity in heavy fermion systems

重い電子系の超伝導

大貫 惇睦; 摂待 力生*; 本多 史憲*; 竹内 徹也*; 立岩 尚之   ; 松田 達磨; 山本 悦嗣  ; 芳賀 芳範   ; 播磨 尚朝*

Onuki, Yoshichika; Settai, Rikio*; Honda, Fuminori*; Takeuchi, Tetsuya*; Tateiwa, Naoyuki; Matsuda, Tatsuma; Yamamoto, Etsuji; Haga, Yoshinori; Harima, Hisatomo*

Heavy fermion state and its superconductivity are studied using de Haas-van Alphen (dHvA) effect as well as its pressure effect. The dHvA experiment is used to detect heavy electrons in a typical heavy fermion compound CeCu$$_6$$. It is also extended to investigate uranium and transuranium compounds. A change of the 4f electronic state of a pressure-induced CeRhIn$$_5$$ was studied under pressure, revealing that the superconductivity is closely related to the heavy fermion state.

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分野:Physics, Applied

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