Realization of a spin-wave multiplexer

K. Vogt, F.Y. Fradin, J.E. Pearson, T. Sebastian, S.D. Bader, B. Hillebrands, Alex Hoffmann () and H. Schultheiss ()
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K. Vogt: Fachbereich Physik and Forschungszentrum OPTIMAS, Technische Universität Kaiserslautern
F.Y. Fradin: Argonne National Laboratory
J.E. Pearson: Argonne National Laboratory
T. Sebastian: Fachbereich Physik and Forschungszentrum OPTIMAS, Technische Universität Kaiserslautern
S.D. Bader: Argonne National Laboratory
B. Hillebrands: Fachbereich Physik and Forschungszentrum OPTIMAS, Technische Universität Kaiserslautern
H. Schultheiss: Argonne National Laboratory

Nature Communications, 2014, vol. 5, issue 1, 1-5

Abstract: Abstract Recent developments in the field of spin dynamics—like the interaction of charge and heat currents with magnons, the quasi-particles of spin waves—opens the perspective for novel information processing concepts and potential applications purely based on magnons without the need of charge transport. The challenges related to the realization of advanced concepts are the spin-wave transport in two-dimensional structures and the transfer of existing demonstrators to the micro- or even nanoscale. Here we present the experimental realization of a microstructured spin-wave multiplexer as a fundamental building block of a magnon-based logic. Our concept relies on the generation of local Oersted fields to control the magnetization configuration as well as the spin-wave dispersion relation to steer the spin-wave propagation in a Y-shaped structure. Thus, the present work illustrates unique features of magnonic transport as well as their possible utilization for potential technical applications.

Date: 2014
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DOI: 10.1038/ncomms4727

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