Influence of a Square Resonator on Spin-Wave Routing in a YIG Structure of Connected Zigzags
A.A. Manysheva;
A.V. Sadovnikov;
1Saratov State University, Saratov, Russia
Abstract
Using micromagnetic simulations in the MuMax3 package, the propagation features, spectral characteristics, and spatial distribution of spin waves in an yttrium iron garnet (YIG) film waveguide comprising two sequential zigzag-shaped sections are investigated. It is established that the presence of corners forms a locally inhomogeneous profile of the internal demagnetizing field, leading to a complex interference pattern and asymmetry in wave propagation conditions. It is shown that at a frequency of 5.30 GHz, strong spatial energy localization occurs in the widening regions of the structure, accompanied by a significant suppression of the dynamic magnetization amplitude in the narrow constrictions. The observed sensitivity to the angular orientation of the external magnetic field enables efficient control over signal characteristics without altering the waveguide geometry. The obtained results demonstrate the high potential of the proposed configuration for implementation in magnonic filters, delay lines, and compact, energy-efficient routing elements.
Speaker
Timofeev Arsenii Konstantinovich
Saratov State University
Russia
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