Crystal Structures and Magnetic Interactions of Magnetic Materials
A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Inorganic Crystalline Materials".
Deadline for manuscript submissions: 15 February 2025 | Viewed by 990
Special Issue Editor
Special Issue Information
Dear Colleagues,
Rare earth free permanent magnets are being actively studied for their potential as a future class of magnetic materials, capable of operating at higher temperatures and in challenging corrosion environments, such as renewable energy applications. Of these classes, novel magnets without rare earth components show promise, as they are cost-effective and have interesting magnetic properties. Sustained efforts are being made nowadays in the search for new classes of magnets, motivated by the continuous depletion of rare earth oxide resources and the need for improved magnetic parameters, especially for high-temperature applications. Indeed, rare-earth-free magnets can operate under extreme conditions such as high temperatures and corrosive media, which are the milieu of the operation of motors in wind turbines subjected to strong variations in temperature and humidity. Various possible rare-earth-free magnets have been proposed and largely investigated, using compounds derived from the binary systems FePt, MnAl, MnBi, MnGa, etc. What is common for all these different systems is the fact that they all may exhibit, under certain conditions, the formation of the tetragonal L10 phase, which has been shown to present large magnetocrystalline anisotropy and high coercivity.
The aim of this Special Issue is to investigate the crystal structures responsible for the enhanced magnetic performances of rare-earth-free magnetic materials.
This Special Issue will address all the challenges involved in developing optimized crystal structures in novel rare-earth-free nanocomposite magnets, including, but not limited to, the following topics:
- Theory and modelling;
- Synthesis challenges and microstructure optimization;
- Magnetic phase coexistence and phase stability with temperature;
- Hard–soft exchange coupling in multiphase magnetic nanocomposites;
- Optimization of magnetic performances in rare-earth-free nanocomposite magnets;
- Magnetic performances in extreme conditions of operation.
Dr. Alina Crisan
Guest Editor
Manuscript Submission Information
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Keywords
- RE-free nanocomposite magnets
- hard–soft exchange coupling
- magnetic stability
- structural phase transformation
- L10 phase
- ferromagnetism
- antiferromagnetism
- soft magnetic materials
- hard magnets
- magnetocaloric materials
- functional magnetic materials
- magnetocaloric, magnetoelastic
- multiferroic materials
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