87674 20200221144311.0 doi 10.1088/0957-4484/27/28/285302 sideral 95326 ART-2016-95326 eng (orcid)0000-0001-6771-6941 Pablo-Navarro, Javier Universidad de Zaragoza Three-dimensional core-shell ferromagnetic nanowires grown by focused electron beam induced deposition 2016 Access copy available to the general public Unrestricted Functional nanostructured materials often rely on the combination of more than one material to confer the desired functionality or an enhanced performance of the device. Here we report the procedure to create nanoscale heterostructured materials in the form of core-shell nanowires by focused electron beam induced deposition (FEBID) technologies. In our case, three-dimensional (3D) nanowires (<100 nm in diameter) with metallic ferromagnetic cores of Co- and Fe-FEBID have been grown and coated with a protective Pt-FEBID shell (ranging 10-20 nm in thickness) aimed to minimize the degradation of magnetic properties caused by the surface oxidation of the core to a non-ferromagnetic material. The structure, chemistry and magnetism of nanowire cores of Co and Fe have been characterized in Pt-coated and uncoated nanostructures to demonstrate that the morphology of the shell is conserved during Pt coating, the surface oxidation is suppressed or confined to the Pt layer, and the average magnetization of the core is strengthened up to 30%. The proposed approach paves the way to the fabrication of 3D FEBID nanostructures based on the smart alternate deposition of two or more materials combining different physical properties or added functionalities. info:eu-repo/grantAgreement/ES/DGA/E26 info:eu-repo/grantAgreement/ES/MINECO/MAT2014-51982-C2 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 3.44 2016 MATERIALS SCIENCE, MULTIDISCIPLINARY 59 / 275 = 0.215 2016 Q1 T1 PHYSICS, APPLIED 27 / 147 = 0.184 2016 Q1 T1 NANOSCIENCE & NANOTECHNOLOGY 34 / 87 = 0.391 2016 Q2 T2 1.339 2016 Bioengineering 2016 Q1 Chemistry (miscellaneous) 2016 Q1 Electrical and Electronic Engineering 2016 Q1 Nanoscience and Nanotechnology 2016 Q1 Mechanical Engineering 2016 Q1 Mechanics of Materials 2016 Q1 Materials Science (miscellaneous) 2016 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0002-6761-6171 Magén, César Universidad de Zaragoza (orcid)0000-0001-9566-0738 De Teresa, José María Universidad de Zaragoza 5001 065 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Cienc.Mater. Ingen.Metal. 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 27, 28 (2016), 285302 [10pp.] Nanotechnology Nanotechnology 0957-4484 998389 http://zaguan.unizar.es/record/87674/files/texto_completo.pdf Postprint 247328 http://zaguan.unizar.es/record/87674/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:87674 articulos driver 2020-02-21-13:37:13 ARTICLE