Alkali effects on the electronic states of K3C60 and Rb3C60

Katsumi Tanigaki, Mayumi Kosaka, Takahashi Manako, Yoshimi Kubo, Ichiro Hirosawa, Kenshiro Uchida, Kosmas Prassides

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32 Citations (Scopus)

Abstract

The electronic states in metallic alkali fullerides K3C60 and Rb3C60, are studied in detail by cw- and pulsed-ESR. The ESR linewidth associated with conduction electrons varies substantially, depending sensitively on the alkali metals used. It is clearly revealed that the linewidth is homogeneous and is strongly controlled by the spin-lattice relaxation times (T1) determined via the spin-orbit interactions of the small fraction of s electrons remaining on the alkali atoms. The results indicate that the electron transfer from the alkali atoms to C60 is not perfectly complete, with the remaining fraction being much greater in the tetrahedral sites than in the octahedral sites of the face-centered cubic lattice.

Original languageEnglish
Pages (from-to)627-632
Number of pages6
JournalChemical Physics Letters
Volume240
Issue number5-6
DOIs
Publication statusPublished - 1995 Jul 7

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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    Tanigaki, K., Kosaka, M., Manako, T., Kubo, Y., Hirosawa, I., Uchida, K., & Prassides, K. (1995). Alkali effects on the electronic states of K3C60 and Rb3C60 Chemical Physics Letters, 240(5-6), 627-632. https://doi.org/10.1016/0009-2614(95)00556-J