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This is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0). Please note that the reuse, redistribution and reproduction in particular requires that the authors and source are credited.
Magnetic properties of Fe3O4–Au hybrid NPs. ZFC/FC curves at B = 5 mT (A). TV indicates the Verwey transition temperature for samples MNP-25 and MNP-44. Hysteresis loops at T = 5 K and T = 300 K (B).