Microwave behavior study on non-saturated magnetic nanowire systems

Financed by the Romanian National Authority for Scientific Research, CNCS – UEFISCDI, project   PN-II-RU-TE-2012-3-0449, no. 26 / 2013


Director of proiect:
Lect.dr.Ioan DUMITRU
(Faculty of Physics, Alexandru Ioan Cuza University, Iaşi)

The project is dedicated to the study of fundamental properties of nanostructured magnetic materials with the aim to evidence possibilities of their use in microwave devices.

 Due to the miniaturization tendency of microwave components and to the necessity to control these using low magnetic fields the nanowires system on unsaturated states attracted researcher attention.The advantage of such a configuration consists in the control of magnetic properties through geometrical characteristics. In particulate systems with exchange and/or magnetostatic interactions, the intensity of interactions is a decisive factor in the frequency behavior of the ensemble. However, in order to succeed in designing devices with pre-determined properties one have to profoundly understand the way in which the magnetization is reversed and how the magnetic interactions are influencing the microwave properties of ensemble. The project implies an ample experimental part which consists in the production of nanowire systems, static and dynamic magnetic measurements on systems of nanowires, microwave characterization of nanowire systems. This experimental part is continuously accompanied by a strong modeling activity and theoretical development which will cover the domain from micromagnetic modeling of single wire up to microwave behavior of wire systems. The group involved in the project is made of internationally recognized researchers with access at high quality research equipment.