Electronic states studies of alkali-metal-doped C60 superconductors by nuclear magnetic resonance

Mayumi Kosaka, Katsumi Tanigaki, Thomas W. Ebbesen, Yoshifumi Nakahara, Kazuo Tateishi

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


The density of states at the Fermi level [N(EF)] of alkali-metal-doped C60 superconductors having a wide range of T c from Na2Rb1C60 (Tc=3.5 K) to Rb1Cs2C60 (Tc=33 K) is systematically studied using spin-lattice relaxation times (T1) by NMR spectroscopy. The obtained N(EF) values suggest that the phonon modes associated with superconductivity are high and that the electron-phonon coupling constant is responsible for the large decrease in Tc in the small lattice parameter region.

Original languageEnglish
Pages (from-to)2561-2563
Number of pages3
JournalApplied Physics Letters
Issue number18
Publication statusPublished - 1993
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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