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Coplanar waveguide method for microwave and ferromagnetic resonance characterization of nanocarbon powders decorated with magnetic nanoparticles
Author(s) -
MederosHenry Francisco,
Hermans Sophie,
Huynen Isabelle
Publication year - 2017
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.30731
Subject(s) - coplanar waveguide , materials science , microwave , ferromagnetic resonance , graphene , dielectric , nanoparticle , permeability (electromagnetism) , optoelectronics , characterization (materials science) , magnetic field , nanocomposite , magnetic nanoparticles , broadband , conductivity , ferromagnetism , nanotechnology , condensed matter physics , optics , membrane , magnetization , chemistry , telecommunications , computer science , physics , quantum mechanics , biochemistry
This paper presents a broadband characterization method for nanocomposite powders made of magnetic nanoparticles grafted on graphene oxide sheets. A coplanar waveguide design is proposed as test cell for the nanopowders and a broadband microwave characterization of dielectric constant, conductivity, and permeability is performed even in presence of an external DC magnetic field. The experimental setup combined with the CPW test cell allows to successfully retrieve the ferromagnetic resonance characteristics of the magnetic nanoparticles as well as the electromagnetic parameters of the graphene nanoplatelets.