Photoelectron spectroscopy of sodium-coated C60 and C70 cluster anions

B. Palpant, A. Otake, F. Hayakawa, Y. Negishi, G. H. Lee, A. Nakajima, K. Kaya

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

A systematic study of photoelectron spectroscopy for C60Na-N (N=0–33) and C70Na-N (N=0–15) clusters is reported. These clusters are produced by a laser vaporization source and their photoelectron spectrum is measured using a magnetic-bottle time-of-flight spectrometer. For N < 13, the adiabatic electron affinity and the vertical detachment energy display strong regular features with increasing N. A packing of the sodium atoms in stable Na3 trimers is inferred, with each atom lying above a pentagonal ring. For larger clusters (N>13), a very different trend is observed, signing the appearance of a metallic behavior for the sodium layer at the fullerene surface. The specific case of C70 is also discussed.

Original languageEnglish
Pages (from-to)4509-4512
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume60
Issue number7
DOIs
Publication statusPublished - 1999 Jan 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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