In Nd-doped CuO nanoparticles, the observed trend is that saturation magnetization (Mₛ) increases up to 2 mol% doping and then decreases, while coercivity (Hc) continues to increase.
Dear Hridoy Saha
Yes, I agree with you in that the saturation magnetization increases with the doping percent up to a certain limit, whereas decreases in magnetization with more increasing in doping percent.This case is related to the cations spin magnitude of both dopent and bulk ions. When the spin of dopent is smaller than bulk, a decrease in magnetization should be expected with increasing dopent content as a result of different populations of dopent cations in octahedral and tetrahedral sites which lead to increase up the magnetic anisotropy and in turn increasing up the coercivity. Best regards .....
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