FT-ICR studies of laser desorbed carbon clusters

Shigeo Maruyama; Tetsuya Yoshida; Masamichi Kohno

doi:10.1299/kikaib.65.3791

FT-ICR studies of laser desorbed carbon clusters

Shigeo Maruyama, Tetsuya Yoshida, Masamichi Kohno

Research output: Contribution to journal › Article › peer-review

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 MC_2n⁺ 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 language	English
Pages (from-to)	3791-3798
Number of pages	8
Journal	Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume	65
Issue number	639
DOIs	https://doi.org/10.1299/kikaib.65.3791
Publication status	Published - Nov 1999
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanical Engineering

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title = "FT-ICR studies of laser desorbed carbon clusters",

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.",

author = "Shigeo Maruyama and Tetsuya Yoshida and Masamichi Kohno",

year = "1999",

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AU - Yoshida, Tetsuya

AU - Kohno, Masamichi

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N2 - 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.

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FT-ICR studies of laser desorbed carbon clusters

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