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Strong paramagnetism and possible ferromagnetism in pure carbon nanofoam produced by laser ablation

Rode, Andrei V; Gamaly, Eugene G; Christy, Andrew; Fitz Gerald, John; Hyde, Stephen; Elliman, Robert; Luther-Davies, Barry; Veinger, A I; Androulakis, J.; Giapintzakis, J.

Description

We report the production of a hierarchically nanostructured magnetic carbon foam by high-repetition-rate laser ablation of glassy carbon in Ar. The clusters contain both sp2 and sp3 bonded carbon atoms. The material contains graphite-like sheets with hyperbolic curvature, as proposed for "schwarzite". In addition to other unusual properties, the all-carbon nanofoam exhibits para- and maybe ferromagnetic behavior up to 90 K, with a narrow hysteresis curve, susceptibility of the order of 10-5...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
URI: http://hdl.handle.net/1885/73649
Source: Journal of Magnetism and Magnetic Materials
DOI: 10.1016/j.jmmm.2004.11.213

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