Speaker
Andrey Voronov
(University of Vienna)
Description
We present a study on the effective propagation of spin waves in curved nano-conduits made of Gallium-substituted Yttrium Iron Garnet (GaYIG) using micro-focused Brillouin Light Scattering spectroscopy. The investigation was carried out in the Forward Volume geometry to ensure an isotropic in-plane medium for spin-wave propagation. The curved nano-conduits have a thickness of 69 nm and a minimum width of 170 nm. Due to the pronounced uniaxial anisotropy of GaYIG, an external magnetic field of 50 mT is sufficient to magnetise it. Long-range propagation of spin waves was observed because GaYIG has a high exchange stiffness. Our results pave a promising way for efficient information transport in 2D magnonic networks.
Author
Andrey Voronov
(University of Vienna)
Co-authors
Ondřej Wojewoda
(CEITEC BUT, Brno University of Technology, Purkyňova 123, Brno, Czech Republic.)
Kristýna Davídková
(CEITEC BUT, Brno University of Technology, Brno, Czech Republic)
Qi Wang
(Huazhong University of Science and Technology)
Carsten Dubs
(INNOVENT e. V. Technologieentwicklung, Prüssingstraße 27 B, Jena, Germany.)
Michal Urbánek
(CEITEC BUT, Brno University of Technology, Purkyňova 123, Brno, Czech Republic.)
Andrii Chumak
(University of Vienna, Faculty of Physics, Boltzmanngasse 5, Vienna, Austria.)