Modeling and theoretical description of magnetic hybrid materials - bridging from meso- to macro-scales

磁性杂化材料的建模和理论描述 - 从介观尺度到宏观尺度的桥梁

• 批准号: 237783497
• 负责人: Professor Dr. Hartmut Löwen
• 金额: --
• 依托单位: Lehrstuhl II: Weiche Materie
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/237783497?language=en
• 关键词: Modeling; theoretical; description; magnetic; hybrid

We investigate the static and dynamic response of magnetic hybrid materials to external magnetic and mechanical fields. For this purpose, explicit mesoscopic theoretical approaches and statistical many-body theories are developed and applied. Our theoretical descriptions of the magnetic and elastic interactions between the magnetic colloidal particles embedded in an elastic matrix are supplemented by numerical calculations and simulations. As a central aspect, we wish to understand how collective interactions between the magnetic colloidal particles influence the macroscopic material properties. In this way, the mesoscopic particle level is connected to the macroscopic length scales.

我们研究了磁性混合材料对外磁场和机械场的静态和动态响应。为此，明确的介观理论方法和统计多体理论的发展和应用。我们的理论描述的磁性胶体颗粒之间的磁性和弹性相互作用嵌入在一个弹性矩阵的数值计算和模拟的补充。作为一个中心方面，我们希望了解磁性胶体颗粒之间的集体相互作用如何影响宏观材料性质。通过这种方式，介观粒子水平连接到宏观长度尺度。