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Dresden 2020 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 54: Spin: Transport, Orbitronics and Hall Effects II

MA 54.10: Vortrag

Donnerstag, 19. März 2020, 17:30–17:45, HSZ 403

Magnetization dynamics in nanofiber networks — •Tomasz Blachowicz1, Pawel Steblinski1,2, Jacek Grzybowski1, and Andrea Ehrmann31Silesian University of Technology, Institute of Physics - Center for Science and Education, 44-100 Gliwice, Poland — 2Faculty of Electronics and Informatics, Koszalin University of Technology, 75-453 Koszalin, Poland — 3Bielefeld University of Applied Sciences, Faculty of Engineering and Mathematics, Bielefeld, Germany

Magnetic nanofibers are of high interest for applications like data transport and storage as well as in basic research. Especially bent nanofibers, as they can unambiguously be produced by electrospinning [1], show a broad spectrum of possible magnetization reversal processes, depending on bending radius, geometry, magnetic field orientation, etc. [2].

Besides these quasistatic processes, dynamic investigations are necessary for investigating data transport properties of magnetic nanofibers. We report on domain wall transport through nanowires with different bending radii, starting from single nanowires to networks with multiple data inputs and outputs. Our results show diverse phenomena which have to be taken into account during these dynamic processes, such as domain wall instabilities or interference between converging signals, and suggest possible architectures of nanowire-based logics.

[1] C. Döpke, T. Grothe, P. Steblinski, M. Klöcker, L. Sabantina, D. Kosmalska, T. Blachowicz, A. Ehrmann, Nanomaterials 9, 92 (2019)

[2] T. Blachowicz, A. Ehrmann, J. Appl. Phys. 124, 152112 (2018)

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