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arXiv · 2211.05514

High wave vector non-reciprocal spin wave beams

L. Temdie·V. Castel·C. Dubs·G. Pradhan·J. Solano·H. Majjad·R. Bernard·Y. Henry·M. Bailleul·V. Vlaminck
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Abstract

We report unidirectional transmission of micron-wide spin waves beams in a 55 nm thin YIG. We downscaled a chiral coupling technique implementing Ni80Fe20 nanowires arrays with different widths and lattice spacing to study the non-reciprocal transmission of exchange spin waves down to lambda = 80 nm. A full spin wave spectroscopy analysis of these high wavevector coupled-modes shows some difficulties to characterize their propagation properties, due to both the non-monotonous field dependence of the coupling efficiency, and also the inhomogeneous stray field from the nanowires.

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L. Temdie, V. Castel, C. Dubs, G. Pradhan, J. Solano, H. Majjad, R. Bernard, Y. Henry, M. Bailleul, V. Vlaminck. 2022-11-10. High wave vector non-reciprocal spin wave beams. https://arxiv.org/abs/2211.05514

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