Applications of exchange coupled bi-magnetic hard/soft and soft/hard magnetic core/shell nanoparticles

TL;DR

This review discusses the synthesis, properties, and diverse applications of exchange coupled bi-magnetic core/shell nanoparticles, highlighting their advantages and remaining challenges.

Contribution

It provides a comprehensive overview of the current state of bi-magnetic core/shell nanoparticles and explores their potential in various technological applications.

Findings

Effective exchange coupling enhances magnetic performance.

Core/shell morphology offers advantages in multiple applications.

Remaining challenges include synthesis control and stability.

Abstract

The applications of exchange coupled bi-magnetic hard/soft and soft/hard ferromagnetic core/shell nanoparticles are reviewed. After a brief description of the main synthesis approaches and the core/shell structural-morphological characterization, the basic static and dynamic magnetic properties are presented. Five different types of perspective applications, based on diverse patents and research articles, are described: permanent magnets, recording media, microwave absorption, biomedical applications and other applications. Both the advantages of the core/shell morphology and some of the remaining challenges are discussed.