The applications of exchange coupled bi-magnetic hard/soft and soft/hardferromagnetic core/shell nanoparticles are reviewed. After a brief descriptionof the main synthesis approaches and the core/shell structural-morphologicalcharacterization, the basic static and dynamic magnetic properties arepresented. Five different types of perspective applications, based on diversepatents and research articles, are described: permanent magnets, recordingmedia, microwave absorption, biomedical applications and other applications.Both the advantages of the core/shell morphology and some of the remainingchallenges are discussed.
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