Three-dimensional magnetic and superconducting nanowires grown by focused electron/ion beam induced deposition

Abstract

In this contribution, we will show the capabilities of Focused Electron/Ion Beam Induced Deposition (FEBID/FIBID) for the growth of three-dimensional magnetic and superconducting nanowires. First, the FEBID technique will be introduced, and representative images of the grown magnetic nanowires will be shown, which include nanowires with various segments forming arbitrary angles or with changing radius, nano-spirals, core-shell nanowires, nanotubes, etc. Second, the magnetic properties of several types of these nanowires will be summarized, with emphasis in the characterization by Electron Holography. Later, the application of FIBID technique, using Ga-based and He-based microscopes, for the growth of superconducting nanowires will be presented. Emphasis will be put on the correlation between the superconducting properties and the microstructure, investigated by TEM. Finally, the mechanical properties of these three-dimensional nanowires, studied by three-pointcontact AFM technique, will be presented.