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oapen-20.500.12657-553862022-06-01T03:29:47Z Magnetic Nanostructures LOTTINI, ELISABETTA bic Book Industry Communication::P Mathematics & science::PD Science: general issues::PDN Scientific equipment, experiments & techniques bic Book Industry Communication::P Mathematics & science::PH Physics bic Book Industry Communication::P Mathematics & science::PH Physics::PHF Materials / States of matter bic Book Industry Communication::P Mathematics & science::PH Physics::PHU Mathematical physics bic Book Industry Communication::P Mathematics & science::PH Physics::PHV Applied physics bic Book Industry Communication::P Mathematics & science::PN Chemistry::PNR Physical chemistry bic Book Industry Communication::R Earth sciences, geography, environment, planning::RB Earth sciences This thesis reports the results of studies conducted at LAboratory for Molecular Magnetism (LA.M.M.) of the University of Firenze concerning the synthesis and characterization of rare-earth free nanostructured materials for permanent magnet applications. Ferrite-based magnetic materials doped with transition metal ions are studied with particular attention to the correlation between their magnetic properties and nanostructures. Firstly, the magnetic behaviour of single-phase ferrites nanocrystals with enhanced anisotropy was analysed, in order to under stand the correlation between the final properties and particle size, shape, crystallinity, composition, etc. Then, hybrid bi magnetic core|shell nanoparticles were prepared focusing on the aftermath and required conditions of exchange-coupling establishment between the two moieties. 2022-05-31T10:28:18Z 2022-05-31T10:28:18Z 2017 book ONIX_20220531_9788864535753_670 2612-8020 9788864535753 9788864535746 9788892731677 https://library.oapen.org/handle/20.500.12657/55386 eng Premio Tesi di Dottorato application/pdf Attribution 4.0 International 9788864535753.pdf https://books.fupress.com/isbn/9788864535753 Firenze University Press 10.36253/978-88-6453-575-3 10.36253/978-88-6453-575-3 bf65d21a-78e5-4ba2-983a-dbfa90962870 9788864535753 9788864535746 9788892731677 65 158 Florence open access
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This thesis reports the results of studies conducted at LAboratory for Molecular Magnetism (LA.M.M.) of the University of Firenze concerning the synthesis and characterization of rare-earth free nanostructured materials for permanent magnet applications. Ferrite-based magnetic materials doped with transition metal ions are studied with particular attention to the correlation between their magnetic properties and nanostructures. Firstly, the magnetic behaviour of single-phase ferrites nanocrystals with enhanced anisotropy was analysed, in order to under stand the correlation between the final properties and particle size, shape, crystallinity, composition, etc. Then, hybrid bi magnetic core|shell nanoparticles were prepared focusing on the aftermath and required conditions of exchange-coupling establishment between the two moieties.
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