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Fig. 14 | Nanoscale Research Letters

Fig. 14

From: Sn2+ Doping: A Strategy for Tuning of Fe3O4 Nanoparticles Magnetization Dipping Temperature/Amplitude, Irreversibility, and Curie Point

Fig. 14

Change of magnetization (M) with temperature during heating for the 3rd cycle of the heated pristine Fe3O4 nanoparticles while applying a magnetic field H = 2 (Tesla) (pink dotted, experimental; solid, fitted using the new bulk-shell expression (black) and the modified Bloch law proposed by Kodama et al. (green)). Green arrows indicate the temperatures where the modified Bloch law proposed by Kodama et al. failed to fully fit the experimental data

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