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Iron oxide-based exchange-coupled nanomagnets consisting of antiferromagnetic wüstite (FexO) cores covered by ferrimagnetic metal ferrite shells (see figure) are chemically synthesized in a simple one-pot procedure. The synthesis allows independent size, shape, and compositional control. The strong exchange coupling at the core/shell interface results in unique magnetic properties.
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Bodnarchuk et al. (2009) studied this question.
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