Probing Spin Wave Diffraction Patterns of Curved Antennas

L. Temdie, V. Castel, V. Vlaminck, M. B. Jungfleisch, R. Bernard, H. Majjad, D. Stoeffler, Y. Henry, M. Bailleul

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Resumen

We report on the dependence of curvilinear-shaped coplanar waveguides on the near-field diffraction (NFD) patterns of spin waves propagating in perpendicularly magnetized thin films. Implementing the propagating spin-wave spectroscopy techniques on either concentrically or eccentrically shaped antennas, we show how the link budget is directly affected by the spin-wave interference, in good agreement with NFD simulations. This work demonstrates the feasibility of inductively probing a magnon interference pattern with a resolution down to 1μm2, and provides a methodology for shaping spin-wave beams from an antenna design. This methodology is successfully implemented in the case study of a spin-wave Young's interference experiment.

Idioma originalInglés
Número de artículo014032
PublicaciónPhysical Review Applied
Volumen21
N.º1
DOI
EstadoPublicada - ene. 2024
Publicado de forma externa

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