Miniaturized Coplanar Waveguide for Nanostructured Magnetostrictive Multilayer Characterization

Proceedings

Mazzamurro, Aurélien¹  Gerbedoen, Jean Claude²  Fellahi, Abdelhatif El³ 

[1] Author to whom correspondence should be addressed.;Presented at the Eurosensors 2018 Conference, Graz, Austria, 9–12 September 2018;Univ-Lille, CNRS, Centrale Lille, ISEN, Univ-Valenciennes, IEMN UMR 8520 - LIA LICS/LEMAC, F-59000 Lille, France

关键词: nanostructured thin film;    magnetostrictive thin film;    RF characterization;   

DOI  :  10.3390/proceedings2130851

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

A miniaturized coplanar waveguide (CPW) on a Y-cut LiNbO3 substrate operating in Radio Frequency region (RF) is proposed for studying of magnetostrictive multi-layered structure. The structure is composed of a 14 × [TbCo2 (3.7 nm)/FeCo (4 nm)] nanostructured multi-layer. Using microtechnology process, the miniaturized CPW has been designed with a 50 µm wide signal line in the frequency range from 6 MHz to 6 GHz. Electromagnetic simulations based on ®Ansys/HFSS demonstrate insertion losses less than 2 dB and show that the magnetic field is more confined in the nanostructured multi-layer placed on top of the micro-sized CPW. By using Vectorial Network Analyzer (VNA) the Ferromagnetic Resonance (FMR) is investigated from the reflection (Sii) or transmission (Sij) coefficients of scattering parameters. An inversion model is finally used to extract the complex permeability spectrum of the thin-film in a large frequency range.

【 授权许可】

CC BY