Metal-insulator transition in C60 fullerides

Y. Iwasa*, T. Takenobu, H. Kitano, A. Maeda

*この研究の対応する著者

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Intercalated fullerides A3C60 (A = K and Rb) are well known BCS-type superconductors, but their superconductivity is easily destroyed by subtle chemical modification, resulting in the antiferromagnetically ordered states. This property is suggestive of the importance of electron correlation effect. Using microwave cavity perturbation technique, we found that the conductivity at 250 K of the antiferromagnet compounds is already 3-4 orders of magnitude smaller than those of superconducting compounds. These results strongly suggest that the Mott-Hubbard transition in the A3C60 systems is driven by reduction of lattice symmetry.

本文言語English
ページ(範囲)615-616
ページ数2
ジャーナルPhysica C: Superconductivity and its Applications
388-389
DOI
出版ステータスPublished - 2003 5月
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学

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