Magnetic property of pyrolytic carbon prepared on diamond powder in applied magnetic field

We have prepared pyrolytic carbon samples from triethylamine on diamond powder in applied magnetic field of 6T and investigated their magnetic properties. A ferromagnetic sample was obtained from the pyrolysis products even at room temperature, with spontaneous magnetization of 6.4Am2/kg at 300K, which is twice as large as that of the sample prepared without diamond powder. Therefore, the diamond powder seems to promote the formation of a three-dimensional ferromagnetic structure in pyrolytic carbon.