Structural and magnetic properties of polymerized C 60 with Fe

A. Talyzin, A. Dzwilewski, L. Dubrovinsky, A. Setzer and P. Esquinazi ()

The European Physical Journal B: Condensed Matter and Complex Systems, 2007, vol. 55, issue 1, 57-62

Abstract: We provide evidence that high-pressure high-temperature (2.5 GPa and 1040 K) treatment of mixtures of iron with fullerene powders leads to the complete transformation of iron into iron carbide Fe 3 C. The comparison of the magnetic properties (Curie temperature and magnetic moment) of the here studied samples and those for the ferromagnetic polymer Rh-C 60 indicates that the main ferromagnetic signal reported in those samples is due to Fe 3 C and not related to the ferromagnetism of carbon as originally interpreted. Taking into account the results obtained in this study the original paper on “Magnetic carbon" [Nature 413, 716 (2001)] was recently retracted. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Keywords: 75.50.-y Studies of specific magnetic materials; 75.50.Bb Fe and its alloys; 72.80.Rj Fullerenes and related materials (search for similar items in EconPapers)
Date: 2007
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DOI: 10.1140/epjb/e2007-00041-7

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