Magnetimpedance spectroscopy of magnetodielectric mesostructures

我们的研究计划旨在设计和研究具有可控电磁特性的新材料，特别是在微波范围内。目标材料主要由嵌入磁性和金属颗粒（纳米线或纳米团簇）的介电基质组成。通过控制材料的磁性和介电性质，将实现对性质的控制，基本上是阻抗和传播常数。将从理论和实验两方面研究电阻抗随频率、磁场和温度的变化。 可以预见，磁场调谐，沿着材料成分和几何形状的适当选择，将允许前所未有的自由度，并为开发用于通信和信息技术的新一类材料提供新的工程概念。自旋电子学和超材料的新兴领域是可以从我们的研究中受益的研究领域的例子。

Our research program aims to design and study new materials with controlled electromagnetic properties, especially in the microwave range. The targeted materials mostly consist in dielectric matrices with embedded magnetic and metallic particles (nanowires or nanoclusters). The control of the properties, essentially the impedance and the propagation constant, will be achieved through the control of the magnetic and dielectric properties of the materials. The electrical impedance will be studied, both theoretically and experimentally, as a function of the frequency, the magnetic field and the temperature. It is anticipated that the magnetic field tuneability, along with the proper choice of material composition and geometry, will allow an unprecedented degree of liberty, and provide new engineering concepts for the development of a new class of materials for applications in communication and information technologies. The emerging fields of spintronics and of metamaterials are examples of research fields which could benefit from our research.