Summary
Iron particles, encapsulated by graphite layers, were produced by means of the Kratschmer arc discharge method in an iron pentacarbonyl atmosphere. The Mössbauer effect is dominated by the vibration of the particles as a whole. Superparamegnetism is dominant for iron oxide particles. No endohedral iron fullerenes were observed, contrary to a previous report.
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Zhang, G.L., du Marchie van Voorthuysen, E.H., Szymanski, K. et al. Iron nanoparticles grown in a carbon arc discharge. Il Nuovo Cimento D 18, 281–285 (1996). https://doi.org/10.1007/BF02458905
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DOI: https://doi.org/10.1007/BF02458905