De Haas-van alphen effect and fermi surface properties in YbTIn5 (T : Co, Rh, Ir) and YbCoGa5

Jyunya Sakaguchi, Hiroki Tsutsumi, Yusuke Hirose, Yasunao Miura, Fuminori Honda, Hisatomo Harima, Rikio Settai, Yoshichika Onuki

研究成果: ジャーナルへの寄稿学術誌査読

1 被引用数 (Scopus)

抄録

We measured the de Haas-van Alphen oscillation in divalent compounds YbTIn5 (T : Co, Rh, Ir) and YbCoGa5. The Fermi surfaces, which are characteristic in two kinds of nearly cylindrical Fermi surface, are approximately unchanged in these compounds and are well explained by the results of energy band calculations. The cyclotron mass is found to increase remarkably as the average lattice constant decreases from 5.4 Å in YbIrIn 5 to 5.2 Å in YbCoGa5: m*c = 1.1m0 in YbIrIn5 and 5.1m0 in YbCoGa 5 for dHvA branch β1, revealing a chemical pressure effect. There exists the hybridization between 4 f electrons and conduction electrons in YbCoGa5.

本文言語英語
論文番号SB059
ジャーナルjournal of the physical society of japan
81
SUPPL.B
DOI
出版ステータス出版済み - 9月 2012
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 物理学および天文学一般

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