| Title | Structure and magnetic properties of Fe-Pd silica composites prepared by sequential ion implantation |
|---|---|
| Publication Type | Articolo su Rivista peer-reviewed |
| Year of Publication | 2004 |
| Authors | C. Fernández, de Julián, Mattei G., Sangregorio C., Tagliente M.A., Bello V., Battaglin G., Sada C., Tapfer Leander, Gatteschi D., and Mazzoldi P. |
| Journal | Journal of Non-Crystalline Solids |
| Volume | 345-346 |
| Pagination | 681-684 |
| ISSN | 00223093 |
| Keywords | Coercive fields, Coercive force, Composite materials, Granular films, Granular materials, Hysteresis, Ion implantation, Magnetic moments, Molecular Structure, Sequential ion implantation, Silica, Temperature thresholds |
| Abstract | The nanostructural and magnetic properties of Fe-Pd/SiO2 granular solids prepared by sequential ion implantation have been investigated. Nanostructural features depend on the relative Pd/Fe implanted dose and, in particular, in the Pd50Fe50 sample 2-6 nm size nanoparticles with the disordered FCC structure are formed. At low temperatures Fe-Pd composites have open hysteresis loops with coercivity fields of some mT and large magnetic moment per Fe atom (2.8 μB). In only-Fe and Fe-Pd composites the nanoparticles are superparamagnetic at room temperature and the blocking temperature increases from 20 K, for the only-Fe sample, to 110 K, for Fe50Pd50 sample. © 2004 Elsevier B.V. All rights reserved. |
| Notes | cited By 4; Conference of Physics of Non-Crystalline Solids 10 ; Conference Date: 15 October 2004 Through 15 October 2004; Conference Code:63887 |
| URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-9544238128&doi=10.1016%2fj.jnoncrysol.2004.08.158&partnerID=40&md5=73a8ed82d13ee67e02b8352a58c9edde |
| DOI | 10.1016/j.jnoncrysol.2004.08.158 |
| Citation Key | DeJuliánFernández2004681 |
