Propagation of Spin-Wave Packets in Individual Nanosized Yttrium Iron Garnet Magnonic Conduits

Autor(en)

Björn Heinz, Thomas Brächer, Michael Schneider, Qi Wang, Bert Lägel, Anna M. Friedel, David Breitbach, Steffen Steinert, Thomas Meyer, Martin Kewenig, Carsten Dubs, Philipp Pirro, Andrii V. Chumak

Abstrakt

Modern-day CMOS-based computation technology is reaching its fundamental limitations. The emerging field of magnonics, which utilizes spin waves for data transport and processing, proposes a promising path to overcome these limitations. Different devices have been demonstrated recently on the macro- and microscale, but the feasibility of the magnonics approach essentially relies on the scalability of the structure feature size down to the extent of a few 10 nm, which are typical sizes for the established CMOS technology. Here, we present a study of propagating spin-wave packets in individual yttrium iron garnet (YIG) conduits with lateral dimensions down to 50 nm. Space and time-resolved microfocused Brillouin-light-scattering (BLS) spectroscopy is used to characterize the YIG nanostructures and measure the spin-wave decay length and group velocity directly. The revealed magnon transport at the scale comparable to the scale of CMOS proves the general feasibility of magnon-based data processing.

Organisation(en)

Nanomagnetismus und Magnonik

Externe Organisation(en)

Technische Universität Kaiserslautern, Johannes Gutenberg-Universität Mainz, THATec Innovat GmbH, Innovent e.V. Technologieentwicklung Jena

Journal

Nano Letters

Band

20

Seiten

4220-4227

Anzahl der Seiten

8

ISSN

1530-6984

DOI

https://doi.org/10.1021/acs.nanolett.0c00657

Publikationsdatum

06-2020

Peer-reviewed

Ja

ÖFOS 2012

103017 Magnetismus, 103009 Festkörperphysik

Schlagwörter

ASJC Scopus Sachgebiete

Bioengineering, Allgemeine Chemie, Allgemeine Materialwissenschaften, Condensed Matter Physics, Mechanical Engineering

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/5323cdc5-b91f-41f6-aa8c-cc349bf37b7a