Zero-field spin wave turns
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Date
2024-03-11
Authors
Klíma, Jan
Wojewoda, Ondřej
Roučka, Václav
Molnár, Tomáš
Holobrádek, Jakub
Urbánek, Michal
0000-0002-4276-520XAdvisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
AIP Publishing
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Abstract
Spin-wave computing, a potential successor to CMOS-based technologies, relies on the efficient manipulation of spin waves for information processing. While basic logic devices such as magnon transistors, gates, and adders have been experimentally demonstrated, the challenge for complex magnonic circuits lies in steering spin waves through sharp turns. In this study, we demonstrate with micromagnetic simulations and Brillouin light scattering microscopy experiments, that dipolar spin waves can propagate through 90 degrees turns without distortion. The key lies in carefully designed in-plane magnetization landscapes, addressing challenges posed by anisotropic dispersion. The experimental realization of the required magnetization landscape is enabled by spatial manipulation of the uniaxial anisotropy using corrugated magnonic waveguides. The findings presented in this work should be considered in any magnonic circuit design dealing with anisotropic dispersion and spin wave turns.
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Citation
Applied Physics Letters. 2024, vol. 124, issue 11, 6 p.
https://pubs.aip.org/aip/apl/article/124/11/112404/3270785/Zero-field-spin-wave-turns
https://pubs.aip.org/aip/apl/article/124/11/112404/3270785/Zero-field-spin-wave-turns
Document type
Peer-reviewed
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Published version
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Language of document
en