Permanent-magnet materials are critical components for green energy technologies
but the intrinsic trade-off between saturation magnetization and coercivity limits their achievable energy density. Here
a new concept of ordered structures is proposed to develop high-performance permanent magnets. This strategy enables a rare combination of high magnetization and high coercivity by introducing new magnetization reversal mechanisms associated with ordered structures. Implications and challenges of building ordered structures for strong magnets are discussed. This Perspective aims to draw the attention of materials research community to the emerging ordered magnets and to motivate active investigations on this topic for creating transformative magnets.
Institute of Materials Science Technische Universität Darmstadt
Institute of Materials Science Technische Universität Darmstadt Darmstadt Germany
State Key Lab of Mechanics and Control of Mechanical Structures & Key Lab for Intelligent Nano Materials and Devices of Ministry of Education & College of Aerospace Engineering Nanjing University of Aeronautics and Astronautics (NUAA)