Element-Specific Magnetic Hysteresis of Individual 18 nm Fe Nanocubes
Element-Specific Magnetic Hysteresis of Individual 18 nm Fe Nanocubes
复制标题
DOI：
10.1021/nl200242c
复制
发表时间：
2011-04-01
期刊：
影响因子：
10.8
通讯作者：
Farle, Michael
中科院分区：
文献类型：
--
作者：
Kronast, Florian;Friedenberger, Nina;Farle, Michael
将电子结构和磁响应与同一单个铁磁纳米颗粒的形态和晶体结构相关联至今仍是一个尚未解决的挑战。在这里，我们提出了测量的元素特定的电子结构和磁响应的磁场振幅和方向的函数为化学合成的单一Fe纳米立方体，18 nm的边长。磁性状态和相互作用的单体，二聚体，和定时器进行了分析，通过X射线光电子显微镜不同的颗粒排列。元素特定的电子结构可以与磁性的变化相关联.这种方法为更深入地了解多功能材料和生物医学和工程技术中使用的纳米磁性胶体悬浮液中磁性纳米混合物的集体响应开辟了新的可能性。
Correlating the electronic structure and magnetic response with the Morphology and crystal structure of the same single ferromagnetic nanoparticle has been up to now an unresolved challenge. Here, we present measurements of the element-specific electronic structure and magnetic response as a function of magnetic field amplitude and orientation for chemically synthesized single Fe nanocube with, 18 nm edge length. Magnetic states and interactions of monomers, dimers, and timers are analyzed by X-ray photoemission electron microscopy for different particle arrangements. The element specific electronic structure can be and correlated with the changes of magnetic properties. This approach opens new possibilities for a deeper understanding of the collective response of magnetic nanohybrids in multifunctional materials and in nanomagnetic colloidal suspensions used in biomedical and engineering technologies.