Zhou Yihao, Chen Guorui, Zhao Xun, Tat Trinny, Duan Zhaoqi, Chen Jun
Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, USA.
Sci Adv. 2025 Jan 3;11(1):eads0071. doi: 10.1126/sciadv.ads0071.
Having been predominantly observed in rigid metal and metal alloys since 1865, the magnetoelastic effect was recently experimentally discovered in a soft matter system and used as a new working mechanism for energy and health care applications. Here, a theoretical framework is presented and proven to be universally accurate and robust in interpreting the giant magnetoelastic effect across soft systems subjected to various deformation modes, micromagnet concentrations, magnetization profiles, and geometric structures. The theory uncovers substantial, unique magnetoelastic phenomena in soft systems, including the magnetic pole reversal under localized compression. This work lays a firm foundation for an in-depth understanding and practical applications of the giant magnetoelastic effect in soft matter systems.
自1865年以来，磁弹性效应主要在刚性金属和金属合金中被观察到，最近在一个软物质系统中通过实验发现了该效应，并将其用作能源和医疗保健应用的一种新工作机制。在此，提出了一个理论框架，并证明该框架在解释软系统中各种变形模式、微磁体浓度、磁化分布和几何结构下的巨磁弹性效应时普遍准确且稳健。该理论揭示了软系统中大量独特的磁弹性现象，包括局部压缩下的磁极反转。这项工作为深入理解和实际应用软物质系统中的巨磁弹性效应奠定了坚实基础。
