High-energy resolution photoemission study of CsxC60. Comparative study with KxC60

T. Takahashi, T. Morimoto, T. Yokoya

研究成果: Article査読

8 被引用数 (Scopus)

抄録

Comparative high-energy resolution (ΔE ∼ 30 meV) photoemission spectroscopy has been performed for CsxC60 and KxC60 to study the difference and similarity in the electronic structure near the Fermi level (EF) between the superconducting and the non-superconducting alkali-doped C60. It was found that CsxC60 (0≤x≤6) is a semiconductor or an insulator in the whole composition range except for 0<x≤1 where the Cs doped C60 appears to be metallic with a finite density of states at EF. This shows a sharp contrast with the case of KxC60 which exhibits a relatively large density of states at EF in the composition of 0<x<4 with the largest intensity around x = 3.

本文言語English
ページ(範囲)227-232
ページ数6
ジャーナルPhysica C: Superconductivity and its applications
232
3-4
DOI
出版ステータスPublished - 1994 11月 1
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • エネルギー工学および電力技術
  • 電子工学および電気工学

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