title: Optimization of Magnetic Inks Made of L1(0)-Ordered FePt Nanoparticles and Polystyrene-block-Poly(ethylene oxide) Copolymers.
abstract: The preparation of magnetic inks stable over time made of L10-ordered FePt nanoparticles, thiol-ended poly(ethylene glycol) methyl ether (mPEO-SH) compatibilizing macromolecules and asymmetric polystyrene-block-poly(ethylene oxide) copolymers (BCP) as a subsequent self-organizing medium was optimized. It was demonstrated that the use of sacrificial MgO shells as physical barriers during the annealing stage for getting the L10-ordered state makes easier and more efficient the anchoring of compatibilizing PEO macromolecules onto the nanoparticles surface. L10-FePt grafted nanoparticles have shown a good colloidal stability and affinity with the PEO domains of the BCP leading to L10-FePt/BCP composite thin layers with individual magnetic dots dispersed in the BCP matrix.
authors.affiliation: †CNRS, Université Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France.
authors.forename: Brice
authors.initials: B
authors.lastname: Basly
authors.affiliation: †CNRS, Université Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France.
authors.forename: Thomas
authors.initials: T
authors.lastname: Alnasser
authors.affiliation: ‡Université Bordeaux, CNRS, LCPO, UMR 5629, F-33600 Pessac, France.
authors.forename: Karim
authors.initials: K
authors.lastname: Aissou
authors.affiliation: ‡Université Bordeaux, CNRS, LCPO, UMR 5629, F-33600 Pessac, France.
authors.forename: Guillaume
authors.initials: G
authors.lastname: Fleury
authors.affiliation: ‡Université Bordeaux, CNRS, LCPO, UMR 5629, F-33600 Pessac, France.
authors.forename: Gilles
authors.initials: G
authors.lastname: Pecastaings
authors.affiliation: ‡Université Bordeaux, CNRS, LCPO, UMR 5629, F-33600 Pessac, France.
authors.forename: Georges
authors.initials: G
authors.lastname: Hadziioannou
authors.affiliation: †CNRS, Université Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France.
authors.forename: Etienne
authors.initials: E
authors.lastname: Duguet
authors.affiliation: †CNRS, Université Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France.
authors.forename: Graziella
authors.initials: G
authors.lastname: Goglio
authors.affiliation: †CNRS, Université Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France.
authors.forename: Stéphane
authors.initials: S
authors.lastname: Mornet