High wave vector non-reciprocal spin wave beams

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 λ ≈ 80 nm. A f...

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Bibliographic Details
Published inAIP advances Vol. 13; no. 2; pp. 025207 - 025207-5
Main Authors Temdie, L., Castel, V., Dubs, C., Pradhan, G., Solano, J., Majjad, H., Bernard, R., Henry, Y., Bailleul, M., Vlaminck, V.
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 01.02.2023
American Institute of Physics- AIP Publishing LLC
AIP Publishing LLC
Subjects
Condensed Matter
Coupled modes
Coupling
Lattice vibration
Magnons
Nanowires
Physics
Wave propagation
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ISSN2158-3226
2158-3226
DOI10.1063/9.0000535

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Summary: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 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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ISSN:2158-3226
2158-3226
DOI:10.1063/9.0000535