New Approach to Closely Spaced Disordered Cobalt-Graphene Polymer Nanocomposites for Non-Conductive RF Ferromagnetic Films

Helene Takacs 1, 2 Bernard Viala 1 V. Herman 1 J. Alarcon Ramos 1 J. H. Tortai 2 Florence Duclairoir 3
1 CEA-LETI - Laboratoire d'Electronique et des Technologies de l'Information
2 LTM - Laboratoire des technologies de la microélectronique
3 RICC - Reconnaissance Ionique et Chimie de Coordination
SYMMES - SYstèmes Moléculaires et nanoMatériaux pour l’Energie et la Santé : DRF/INAC/SYMMES
Abstract : This paper describes the two routes with grafting schemes (covalent or not covalent) for producing non-conductive ferromagnetic films of core double-shell cobalt-graphene-polystyrene nanocomposites. Films present high moment (103 emu/g) and high resistivity (10$^{10}$) $\mu \Omega$ . cm) leading to a constant permeability of 1.9 with a magnetic loss tangent of 10$^{-3}$ at 10 GHz.
Keywords : Thin-Films Magnetic Nanocomposite High Frequency Cobalt
Document type :
Journal articles
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https://hal-cea.archives-ouvertes.fr/cea-01745408
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Submitted on : Wednesday, March 28, 2018 - 10:57:31 AM
Last modification on : Thursday, April 4, 2019 - 5:10:03 PM

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Helene Takacs, Bernard Viala, V. Herman, J. Alarcon Ramos, J. H. Tortai, et al.. New Approach to Closely Spaced Disordered Cobalt-Graphene Polymer Nanocomposites for Non-Conductive RF Ferromagnetic Films. IEEE Transactions on Magnetics, Institute of Electrical and Electronics Engineers, 2015, 51, pp.2802304. ⟨10.1109/tmag.2015.2445824⟩. ⟨cea-01745408⟩

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