Author/Authors :
Tomita، نويسنده , , Satoshi and Hikita، نويسنده , , Masahiro and Fujii، نويسنده , , Minoru and Hayashi، نويسنده , , Shinji and Yamamoto، نويسنده , , Keiichi، نويسنده ,
Abstract :
A new and simple method for synthesizing graphitic carbon-coated magnetic-metal (Co, Ni and Fe) nanoparticles has been reported. The mixture of metal and diamond nanoparticles was just annealed at 1700°C in vacuum. The annealed samples were studied by high-resolution transmission electron microscopy, selected-area electron diffraction and X-ray diffraction. These analyses revealed that magnetic-metal particles are coated with uniform graphitic layers several nanometers in thickness.