Synthesis and Magnetic Properties of Ni and Carbon Coated Ni by Levitational Gas Condensation (LGC)
Figure 4
The hysteresis loops of (a) Ni and (b) Ni@C nanoparticles at room temperature. (Magnification of hysteresis loop for Ni@C is represented.) (c) Initial magnetization curve for Ni@C nanoparticles at room temperature.