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MM: Fachverband Metall- und Materialphysik
MM 30: Poster Session II
MM 30.16: Poster
Dienstag, 17. März 2020, 18:15–20:00, P4
Oriented and isotropic electrospun magnetic nanofibers - experiment and simulation — •Timo Grothe1, Jan Lukas Storck1, Al Mamun1, Marah Trabelsi1,2, Michaela Klöcker1, Christoph Döpke1, Lilia Sabantina1, Tomasz Blachowicz3, and Andrea Ehrmann1 — 1Bielefeld University of Applied Sciences, Faculty of Engineering and Mathematics, 33619 Bielefeld, Germany — 2Ecole Nationale d'Ingénieurs de Sfax, Sfax 3038, Tunisia — 3Silesian University of Technology, Institute of Physics - Center for Science and Education, 44-100 Gliwice, Poland
Due to their strong shape anisotropy, magnetic nanofibers are of high interest in basic research as well as in spintronics, neuromorphic computing, for data storage, etc. Besides typical methods to prepare magnetic nanofibers, such as vapor growth, focused-ion-beam milling, or template-based methods, electrospinning allows for creating magnetic nanofiber mats [1].
Electrospun magnetic nanofibers, however, impose new challenges on micromagnetic simulations due to their varying diameters and bending radii. On the other hand, to allow for comparing simulated magnetization reversal processes with experimental findings, it is necessary to optimize the distribution of magnetic particles in the nanofibers.
Here we discuss different possibilities to tailor nanofiber diameters and shapes, influence the distribution of magnetic nanoparticles in the fibers as well as the nanofiber orientation inside the mat, and model static and dynamic properties of idealized and real nanofiber networks.
[1] C. Döpke et al., Nanomaterials 9, 92 (2019)