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Modern Magnetic Systems Miscellaneous Reconfigurable nanoscale spin wave majority gate with frequency-division multiplexing Talmelli, G., Devolder, T., Träger, N., Förster, J., Wintz, S., Weigand, M., Stoll, H., Heyns, M., Schütz, G., Radu, I., Gräfe, J., Ciubotaru, F., Adelmann, C. 2019
Spin waves are excitations in ferromagnetic media that have been proposed as information carriers in spintronic devices with potentially much lower operation power than conventional charge-based electronics. The wave nature of spin waves can be exploited to design majority gates by coding information in their phase and using interference for computation. However, a scalable spin wave majority gate design that can be co-integrated alongside conventional Si-based electronics is still lacking. Here, we demonstrate a reconfigurable nanoscale inline spin wave majority gate with ultrasmall footprint, frequency-division multiplexing, and fan-out. Time-resolved imaging of the magnetisation dynamics by scanning transmission x-ray microscopy reveals the operation mode of the device and validates the full logic majority truth table. All-electrical spin wave spectroscopy further demonstrates spin wave majority gates with sub-micron dimensions, sub-micron spin wave wavelengths, and reconfigurable input and output ports. We also show that interference-based computation allows for frequency-division multiplexing as well as the computation of different logic functions in the same device. Such devices can thus form the foundation of a future spin-wave-based superscalar vector computing platform.
URL BibTeX
Modern Magnetic Systems Miscellaneous A special issue on hydrogen-based Energy storage Hirscher, M. {International Journal of Hydrogen Energy}, 44:7737, Elsevier, Amsterdam, 2019 DOI BibTeX
Modern Magnetic Systems Miscellaneous Hydrogen Energy Hirscher, M., Autrey, T., Orimo, S. {ChemPhysChem}, 20:1153-1411, Wiley-VCH, Weinheim, Germany, 2019 DOI URL BibTeX
Modern Magnetic Systems Miscellaneous Emission and propagation of multi-dimensional spin waves in anisotropic spin textures Sluka, V., Schneider, T., Gallardo, R. A., Kakay, A., Weigand, M., Warnatz, T., Mattheis, R., Roldan-Molina, A., Landeros, P., Tiberkevich, V., Slavin, A., Schütz, G., Erbe, A., Deac, A., Lindner, J., Raabe, J., Fassbender, J., Wintz, S. 2018 URL BibTeX
Modern Magnetic Systems Miscellaneous Thermal skyrmion diffusion applied in probabilistic computing Zázvorka, J., Jakobs, F., Heinze, D., Keil, N., Kromin, S., Jaiswal, S., Litzius, K., Jakob, G., Virnau, P., Pinna, D., Everschor-Sitte, K., Donges, A., Nowak, U., Kläui, M. 2018 URL BibTeX
Modern Magnetic Systems Miscellaneous X-ray microscopy of spin wave focusing using a Fresnel zone plate Gräfe, J., Decker, M., Keskinbora, K., Noske, M., Gawronski, P., Stoll, H., Back, C. H., Goering, E. J., Schütz, G. 2017 URL BibTeX
Modern Magnetic Systems Miscellaneous Derivation of phenomenological expressions for transition matrix elements for electron-phonon scattering Illg, C., Haag, M., Müller, B. Y., Czycholl, G., Fähnle, M. 2015 URL BibTeX
Modern Magnetic Systems Miscellaneous Nanoscale Materials for Energy Storage {Materials Science \& Engineering B}, 108:292, Elsevier, 2004 BibTeX
Modern Magnetic Systems Miscellaneous Photoelektronenspektroskopie an deponierten Nickelclustern Wiesner, B. Würzburg, 2002 BibTeX
Modern Magnetic Systems Miscellaneous Rumpfniveau-Photoemissions-Spektroskopie an Platinclustern auf HOPG Schneider, N. Würzburg, 2002 BibTeX