Berlin 2018 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 39: Micro- and nanostructured magnetic materials
MA 39.3: Vortrag
Donnerstag, 15. März 2018, 10:00–10:15, H 0112
Investigation of magnetization reversal processes in bent nanofibers — •Tomasz Blachowicz1, Andrea Ehrmann2, and Pawel Steblinski1,3 — 1Silesian University of Technology, Institute of Physics - Center for Science and Education, 44-100 Gliwice, Poland — 2Bielefeld University of Applied Sciences, Faculty of Engineering and Mathematics, 33619 Bielefeld, Germany — 3Faculty of Electronics and Informatics, Koszalin University of Technology, 75 453 Koszalin, Poland
Biologically inspired computer hardware, giving up the classical von Neumann architecture with the strict separation of memory and processor, could be based on artificial ferromagnetic nanofiber networks with additional functionalities. As a first step to understand the magnetic processes in such networks, single nanofibers with varying cross-sections and bending radii were investigated by micromagnetic simulations under different angles with respect to the external magnetic field. Due to the strong shape anisotropy and proposed spatial dimensions, all magnetization reversal processes in these nanofibers took place via domain wall processes. Coercive fields and detailed reversal processes, however, significantly depended on the geometric parameters of the fibers. Variation of cross-sections, bending radii and angles between fiber and magnetic field thus resulted in a broad spectrum of possible magnetization reversal processes in magnetic nanofibers, giving rise to diverse scenarios for fiber-based information storage and processing.
[1] Tomasz Blachowicz, Andrea Ehrmann: Magnetization reversal in bent nanofibers of different cross-sections, arXiv:1711.09370