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

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.

Physics Reports

References in corpus (6)

• Resonant Inelastic X-ray Scattering Studies of Elementary Excitations
• Anisotropy Dependence of Irreversible Switching in Fe/SmCo and FeNi/FePt Exchange Spring Magnet Films
• Tunneling Via Individual Electronic States in Ferromagnetic Nanoparticles
• Exchange-spring behavior in bimagnetic CoFe2O4/CoFe2 nanocomposite
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Cited by in corpus (27)

• Exchange Bias Effects in Iron Oxide-Based Nanoparticle Systems
• Embracing defects and disorder in magnetic nanoparticles
• Using small-angle scattering to guide functional magnetic nanoparticle design
• Shape-dependent exchange bias effect in magnetic nanoparticles with core-shell morphology
• Simultaneous individual and dipolar collective properties in binary assemblies of magnetic nanoparticles
• Synthesis of strontium ferrite/iron oxide exchange coupled nano-powders with improved energy product for rare earth free permanent magnet applications
• Probing the core and shell contributions to exchange bias in Co/Co${}_3$O${}_4$ nanoparticles of controlled size
• Crossover From Individual to Collective Magnetism in Dense Nanoparticle Systems: Local Anisotropy Versus Dipolar Interactions
• Configurational entropy of skyrmions and half-skyrmions in planar magnetic elements
• Magnetic properties and phase diagrams of the ferrimagnetic triangular nanotube with core-shell structure: A Monte Carlo study
• Nanoscale distribution of magnetic anisotropies in bimagnetic soft core-hard shell MnFe${}_2$O${}_4$@CoFe${}_2$O${}_4$ nanoparticles
• Multilayered Vortices
• Vacancy-driven non-cubic local structure and magnetic anisotropy tailoring in Fe${}_x$O-Fe${}_{3-\delta }$O${}_4$ nanocrystals
• A Detailed Investigation of the Onion Structure of Exchanged Coupled Magnetic Fe(3-delta)O4@CoFe2O4@Fe(3-delta)O4 Nanoparticles
• Tunnel Magnetoresistance in Self-Assemblies of Exchange Coupled Core/Shell Nanoparticles
• Probing the Meta-Stability of Oxide Core/Shell Nanoparticle Systems at Atomic Resolution
• In-depth investigations of size and occupancies in cobalt ferrite nanoparticles by joint Rietveld refinements of X-ray and neutron powder diffraction data
• Nonmagnetic impurities and roughness effects on the finite temperature magnetic properties of core-shell spherical nanoparticles
• Electrically charged localized structures
• Coercivity and random interfacial exchange coupling in CoPt/Co films
• The effect of antisite disorder on magnetic and exchange bias properties of Gd-substituted Y${}_2$CoMnO${}_6$ double perovskite
• On the detection of surface spin freezing in iron oxide nanoparticles and its long-term evolution under ambient oxidation
• Onion-like Fe3O4/MgO/CoFe2O4 magnetic nanoparticles: new ways to control magnetic coupling between soft/hard phases
• Micromagnetic modelling of nanorods array-based L10-FeNi/SmCo5 exchange-coupled composites
• Experimental and micromagnetic investigation of texture influence on magnetic properties of anisotropic Co/Co3O4 exchange-bias composites
• Remanence Increase in SrFe${}_{12}$O${}_{19}$/Fe Exchange-Decoupled Hard-Soft Composite Magnets Owing to Dipolar Interactions
• Multimagnetic Monopoles