Nanoscaled magnon transistor based on stimulated three-magnon splitting

Autor(en)

Xu Ge, Roman Verba, Philipp Pirro, Andrii V. Chumak, Qi Wang

Abstrakt

Magnonics is a rapidly growing field, attracting much attention for its potential applications in data transport and processing. Many individual magnonic devices have been proposed and realized in laboratories. However, an integrated magnonic circuit with several separate magnonic elements has yet not been reported due to the lack of a magnonic amplifier to compensate for transport and processing losses. The magnon transistor reported in Chumak et al. [Nat. Commun. 5, 4700 (2014)] could only achieve a gain of 1.8, which is insufficient in many practical cases. Here, we use the stimulated three-magnon splitting phenomenon to numerically propose a concept of magnon transistor in which the energy of the gate magnons at 14.6 GHz is directly pumped into the energy of the source magnons at 4.2 GHz, thus achieving the gain of 9. The structure is based on the 100 nm wide YIG nano-waveguides, a directional coupler is used to mix the source and gate magnons, and a dual-band magnonic crystal is used to filter out the gate and idler magnons at 10.4 GHz frequency. The magnon transistor preserves the phase of the signal, and the design allows integration into a magnon circuit.

Organisation(en)

Nanomagnetismus und Magnonik

Externe Organisation(en)

Huazhong University of Science and Technology, Institute of Magnetism, Rheinland-Pfälzische Technische Universität Kaiserslautern-Landau

Journal

Applied Physics Letters

Band

124

Anzahl der Seiten

5

ISSN

0003-6951

DOI

https://doi.org/10.1063/5.0189619

Publikationsdatum

03-2024

Peer-reviewed

Ja

ÖFOS 2012

103017 Magnetismus, 103009 Festkörperphysik

ASJC Scopus Sachgebiete

Physics and Astronomy (miscellaneous)

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/a6feaa1b-601e-4cab-b1be-bc4f48c52486