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High wave vector non-reciprocal spin wave beams

Abstract : We report unidirectional transmission of micron-wide spin waves beams in a 55 nm thin YIG. We downscaled a chiral coupling technique implementing Ni 80 Fe 20 nanowires arrays with different widths and lattice spacing to study the non-reciprocal transmission of exchange spin waves down to λ ≈ 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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Preprints, Working Papers, ... (Preprint)
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https://hal.archives-ouvertes.fr/hal-03843749
Contributor : loic temdie Connect in order to contact the contributor
Submitted on : Tuesday, November 8, 2022 - 1:03:14 PM
Last modification on : Saturday, November 12, 2022 - 3:38:08 AM

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  • HAL Id : hal-03843749, version 1

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Loic Temdie, Vincent Castel, Carsten Dubs, Gyandeep Pradhan, José Solano, et al.. High wave vector non-reciprocal spin wave beams. {date}. ⟨hal-03843749⟩

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