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Journal Articles AIP Advances Year : 2023

High wave vector non-reciprocal spin wave beams

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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 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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Dates and versions

hal-03843749 , version 1 (08-11-2022)

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Loic Temdie, Vincent Castel, Carsten Dubs, Gyandeep Pradhan, José Solano, et al.. High wave vector non-reciprocal spin wave beams. AIP Advances, 2023, 13 (2), pp.025207. ⟨10.1063/5.0128666⟩. ⟨hal-03843749⟩
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