Ferromagnetic carbon materials prepared from polyacrylonitrile

Tetsuji Saito, Daisuke Nishio-Hamane, Shunsuke Yoshii, Tsutomu Nojima

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12 Citations (Scopus)


We report a ferromagnetic carbon material that is attracted by a permanent magnet. The ferromagnetic carbon material was prepared by pyrolysis of polyacrylonitrile at 1273 K for 1 h. Chemical analysis combined with an energy-dispersive x-ray analysis revealed that the carbon material did not contain any transition metals. The metal-free ferromagnetic carbon material exhibited a saturation magnetization of 1.22 emu/g at room temperature.

Original languageEnglish
Article number052506
JournalApplied Physics Letters
Issue number5
Publication statusPublished - 2011 Jan 31


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