Regensburg 2019 – scientific programme

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MA: Fachverband Magnetismus

MA 51: Magnetism Poster B

MA 51.30: Poster

Thursday, April 4, 2019, 15:00–18:00, Poster C

Fabrication of anisotropic magnetic nanostructures — •Irene Iglesias, Marina Spasova, Ulf Wiedwald, and Michael Farle — University Duisburg-Essen and Center for Nanointegration Duisburg-Essen (CENIDE), Germany

The study of anisotropic magnetic micro- and nanostructures is of great interest due to their potential use in a wide range of applications, ranging from biomedicine to storage devices. While the fabrication of the microstructured systems is nowadays widely studied, downsizing to the nanoscale is still a great challenge. In this work, we present the fabrication and magnetic properties of one-dimensional ferromagnetic functional nanostructures, such as nanowires, nanorods, nanotubes and semi-tubes, grown by electrodeposition in ion-track membrane templates. The shape and size, as well as the structural properties of the nanostructures, can be tuned by controlling the deposition parameters such as precursors, deposition potential, pH, Ar flow and others. Moreover, a novel approach for the fabrication of ferromagnetic core-shell nanorods with dimensions in the submicron scale was developed and established. As an example, we present here Co-Fe core-shell nanorods with a length of 1 µm and diameters ranging from 50 nm to 70 nm. The nanorods were structurally and magnetically characterized by scanning and transmission electron microscopy and SQUID magnetometry.