FT-ICR studies of laser desorbed carbon clusters

Shigeo Maruyama, Tetsuya Yoshida, Masamichi Kohno

Research output: Contribution to journalArticle

Abstract

For experimental treatments of atomic clusters, a FT-ICR (Fourier Transform Ion Cyclotron Resonance) spectrometer with a direct injection supersonic cluster beam source was implemented. Newly designed ICR cell in 6 Tesla superconducting magnet was proved to give a high mass-resolution for positive and negative cluster ions. With this mass-spectrometer, pure carbon and metal-carbon binary clusters generated by the laser-vaporization supersonic-expansion cluster-beam source were studied. A special cluster beam source condition was found where only C60+ was observed for pure carbon clusters. Furthermore, positive lanthanum-carbon, yttrium-carbon and scandium-carbon binary clusters showed only MC2n+ signal in the range of 36≤2n≤76 with strong magic numbers at MC 44+, MC50+ and MC60 +. Characteristics of these small clusters were compared with results of molecular dynamics simulations.

Original languageEnglish
Pages (from-to)3791-3798
Number of pages8
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume65
Issue number639
DOIs
Publication statusPublished - Nov 1999
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering

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