Effects of Chromium(III) Ion Doping on Structural, Optical, and Magnetic Properties of Nickel–Cobalt Ferrite Nanoparticle

Figure 2

SEM micrograph of Ni_0.5Co_0.5Cr_xFe_2−xO₄ sample, x: (a) 0, (b) 0.10, and (c) 0.20.

(a)

(b)

(c)