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Electronic states in antiferromagnet UCd$$_{11}$$ and reference compound ThCd$$_{11}$$; Studied by the de Haas-van Alphen effect

反強磁性体UCd$$_{11}$$及び参照系ThCd$$_{11}$$の電子状態; ドハース・ファンアルフェン効果による研究

広瀬 雄介*; 三浦 泰直*; 堤 泰樹*; 吉内 伸吾*; 大家 政洋*; 杉山 清寛*; 竹内 徹也*; 山上 浩志*; 山本 悦嗣; 芳賀 芳範; 摂待 力生*; 大貫 惇睦

Hirose, Yusuke*; Miura, Yasunao*; Tsutsumi, Hiroki*; Yoshiuchi, Shingo*; Oya, Masahiro*; Sugiyama, Kiyohiro*; Takeuchi, Tetsuya*; Yamagami, Hiroshi*; Yamamoto, Etsuji; Haga, Yoshinori; Settai, Rikio*; Onuki, Yoshichika

Electronic states of an antiferromagnet UCd$$_{11}$$ and its reference compound ThCd$$_{11}$$ were investigated by means of de Haas-van Alphen (dHvA) effect. From the cyclotron effective mass determined from the dHvA oscillation, the electronic specific heat of UCd$$_{11}$$ was estimated as 100 mJ/K$$^2$$mol, much smaller than 840 in the previous report. The result suggests that magnetic excitation contributes significantly to the specific heat.

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パーセンタイル:77.51

分野:Physics, Condensed Matter

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