Fig. 11

a M-H loops b Zoom view of Hc and Mr c M vs. 1/H2 d Variation of magnetic parameters (Ms, Hc, Mr, nB) as a function of Zn doping for the prepared catalysts.
a M-H loops b Zoom view of Hc and Mr c M vs. 1/H2 d Variation of magnetic parameters (Ms, Hc, Mr, nB) as a function of Zn doping for the prepared catalysts.