Figure 5

Electromagnetic wave RL of (a) mixture of Fe3O4 and rGO, (b) commercial [Fe, Ni], (c) [Fe, Ni] after annealling at 800°C for 1 hour in Ar.
Electromagnetic wave RL of (a) mixture of Fe3O4 and rGO, (b) commercial [Fe, Ni], (c) [Fe, Ni] after annealling at 800°C for 1 hour in Ar.