Ni 3 N/SiO 2 nanocomposites were prepared via nitriding of a Ni/SiO 2 nanocomposite precursor in flowing ammonia. The intrinsic static and dynamic magnetic properties of the as-prepared samples were investigated with a superconducting quantum interference device and an Agilent N5230A network analyzer, respectively. According to our results, it was found that pure phase nanocrystalline Ni 3 N could be obtained after the Ni/SiO 2 nanocomposite precursor was calcined under a flow of NH 3 at 300 C, and the as-obtained nanocrystalline Ni 3 N is non-ferromagnetic under a static magnetic field and nonmagnetic under a dynamic electromagnetic field.
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