Interaction of Fe+ with the C60 surface: A study about the feasibility of endohedral doping

The feasibility of endohedral iron doping of C60 is studied using a mass selected ion beam to create an Fe+ beam with variable energy (60–380 eV, 1.2×10−3 C) which is directed at a C60 thin film. The surface is characterized by x-ray photoelectron spectroscopy, and oxidation of the samples is used t...

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Bibliographic Details
Published in:Applied physics letters 2004-05, Vol.84 (22), p.4373-4375
Main Authors: Reinke, P., Eyhusen, S., Büttner, M., Oelhafen, P.
Format: Article
Language:English
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Summary:The feasibility of endohedral iron doping of C60 is studied using a mass selected ion beam to create an Fe+ beam with variable energy (60–380 eV, 1.2×10−3 C) which is directed at a C60 thin film. The surface is characterized by x-ray photoelectron spectroscopy, and oxidation of the samples is used to discriminate between Fe@C60 and carbides. The fullerene cages are damaged during the irradiation, and participate in direct Fe–C bond formation. The reaction with oxygen indicates the absence of sizable amount of Fe@C60. Comparison with reference samples composed of iron and damaged fullerene layers (by Ar+ irradiation) supports this interpretation. The experiment serves as a model study for the investigation of different metal-fullerene combinations.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1756204