Istituto dei materiali per l'elettronica ed il magnetismo     
Casoli F., Lupo P., Nasi L., Ranzieri P., Fabbrici S., Bolzoni F., Cabassi R., Albertini F. Hard/soft composite nanoparticles obtained by growing FePt on substrates with variable matching. In: JEMS - Joint European Magnetic Symposia (Krakow, Poland, 23-28 Agosto 2010).
Work focus on FePt nanoparticles, which we have grown by sputtering on both MgO and SrTiO3, in order to exploit the different FePt/substrate matching to modify particle morphology, size and inter-particle separation. The nanoparticles are epitaxially oriented with easy magnetisation c-axis perpendicular to the film plane, show an average size down to 20 nm, tunable coercivity (a few Teslas to fractions of Teslas) and tunable magnetic regime.
Subject Hard/soft nanoparticles

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