Production of small doubly charged negative carbon cluster ions by sputtering

Stephen N. Schauer, Peter Williams, R. N. Compton

Research output: Contribution to journalArticle

165 Citations (Scopus)

Abstract

Carbon cluster ions with a double negative charge, and lifetimes of at least 10s, have been produced by sputtering graphite, and observed in a double-focusing mass spectrometer. Ions as small as C72- have been detected. The intensities of the doubly charged clusters (Cn2- where n=728) follow an alternating pattern, with even-n clusters being more intense than neighboring odd-n clusters. In contrast, even-n singly charged clusters are more intense than odd n for n9, and less intense for n13, where the clusters are believed to be cyclic.

Original languageEnglish (US)
Pages (from-to)625-628
Number of pages4
JournalPhysical Review Letters
Volume65
Issue number5
DOIs
StatePublished - 1990

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sputtering
carbon
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mass spectrometers
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life (durability)

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Cite this

Production of small doubly charged negative carbon cluster ions by sputtering. / Schauer, Stephen N.; Williams, Peter; Compton, R. N.

In: Physical Review Letters, Vol. 65, No. 5, 1990, p. 625-628.

Research output: Contribution to journalArticle

Schauer, Stephen N. ; Williams, Peter ; Compton, R. N. / Production of small doubly charged negative carbon cluster ions by sputtering. In: Physical Review Letters. 1990 ; Vol. 65, No. 5. pp. 625-628.
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