Duc Nguyen Thi My, Srikanth Hariharan, Phan Manh-Huong
Department of Physics, University of South Florida Tampa, FL, USA.
The University of Danang, University of Science and Education, Danang, Viet Nam.
Sci Technol Adv Mater. 2025 Aug 13;26(1):2546287. doi: 10.1080/14686996.2025.2546287. eCollection 2025.
The magnetocaloric effect (MCE) provides a promising foundation for the development of solid-state refrigeration technologies that could replace conventional gas compression-based cooling systems. Current research efforts primarily focus on identifying cost-effective magnetic materials that exhibit large MCEs under low magnetic fields across broad temperature ranges, thereby enhancing cooling efficiency. However, practical implementation of magnetic refrigeration requires more than bulk materials; real-world devices demand efficient thermal management and compact, scalable architectures, often achieved through laminate designs or miniaturized geometries. Magnetocaloric materials with reduced dimensionality, such as ribbons, thin films, microwires, and nanostructures, offer distinct advantages, including improved heat exchange, mechanical flexibility, and integration potential. Despite these benefits, a comprehensive understanding of how size, geometry, interfacial effects, strain, and surface phenomena influence the MCE remains limited. This review aims to address these knowledge gaps and provide guidance for the rational design and engineering of magnetocaloric materials tailored for high-performance, energy-efficient magnetic refrigeration systems.
磁热效应（MCE）为固态制冷技术的发展提供了一个有前景的基础，这类技术有望取代传统的基于气体压缩的冷却系统。当前的研究工作主要集中在寻找具有成本效益的磁性材料，这些材料在宽温度范围内的低磁场下表现出大的磁热效应，从而提高冷却效率。然而，磁制冷的实际应用需要的不仅仅是块状材料；实际设备需要高效的热管理以及紧凑、可扩展的架构，这通常通过层压设计或小型化几何结构来实现。维度降低的磁热材料，如带材、薄膜、微丝和纳米结构，具有独特的优势，包括改善的热交换、机械柔韧性和集成潜力。尽管有这些优点，但对于尺寸、几何形状、界面效应、应变和表面现象如何影响磁热效应的全面理解仍然有限。本综述旨在填补这些知识空白，并为针对高性能、节能磁制冷系统量身定制的磁热材料的合理设计和工程提供指导。
