摘要
Exchange coupling within nanomagnetism is a rapidly evolving field with significant implications for that plays a crucial role in the development of magnetic nanomaterials.Manipulating exchange coupling interaction enables the magnetic systems to overcome limitations associated with size-dependent magnetic behavior within nano scale,thereby improving their magnetic properties and providing for superior performance in biomedical applications compared with single-phase magnetic materials.Understanding the underlying mechanism of exchange coupling and its impact on macroscopic magnetic properties is crucial for the design and application of such magnetic materials.This review provides an overview of recent advances in interfacial exchange coupling among different magnetic modalities-ferromagnetism,ferrimagnetism,and antiferromagnetism-based on core-shell magnetic nanoparticles(MNPs).Additionally,this review discusses micromagnetic simulations to gain insights into the relationship between the microscopic magnetic structure(size,shape,composition,and exchange coupling)and the resulting macroscopic properties.The controlled synthesis of MNPs is summarized,including one-step method and two-step method.The precise manipulation of interfacial characteristics is of great importance,albeit challenging,as it allows for the finetuning of magnetic properties tailored for specific applications.The review also explores potential applications of coreshell MNPs in magnetic resonance imaging,hyperthermia therapy,targeted drug delivery,and advanced neuromodulation.
纳米磁学中的磁交换耦合是一个迅速发展的新兴领域.通过调控磁交换耦合相互作用,磁性纳米系统能够超越其尺寸依赖的磁学行为限制,展现出更优越的磁学性能.理解交换耦合机制及其对宏观磁学性能的影响,对磁性材料的设计和应用至关重要.本文总结了核-壳磁性纳米颗粒的研究进展,重点阐释了在不同磁性模式之间磁交换耦合的机制,剖析了微观磁结构与宏观磁学特性的磁构关系.总结了核-壳磁性纳米颗粒的合成方法(一步法和两步法),并讨论了其在磁共振成像、磁热疗、靶向药物运输和神经调控方面的潜在应用,提出了未来可能的发展方向.
作者
Yuting Tang
Feng Feng
Guanhua Xu
Shijie Qin
Xiaoping Ouyang
Li Yao
Xiuyu Wang
唐玉婷;冯峰;徐冠华;秦世杰;欧阳晓平;姚立;王秀瑜(Institute of Process Equipment,College of Energy Engineering,Zhejiang University,Hangzhou 310027,China;State Key Laboratory for Structural Chemistry of Unstable and Stable Species,Institute of Chemistry,Chinese Academy of Sciences,CAS Research/Education Center for Excellence in Molecular Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China)
基金
supported by the Fundamental Research Funds for the Central Universities(226-2022-00208)
the National Natural Science Foundation of China(52373230)
the State Key Laboratory of Clean Energy Utilization(109203*A62303/022)
the Magnetic DNA Origami:Design,Construction,and Biomedical Application of Nanorobots(209209-J32301ZJ).
