Shaping the spin wave spectra of planar 1D magnonic crystals by the geometrical constraints.

ABSTRACT: We present experimental and numerical studies demonstrating the influence of geometrical parameters on the fundamental spin-wave mode in planar 1D magnonic crystals. The investigated magnonic crystals consist of flat stripes separated by air gaps. The adjustment of geometrical parameters allows tailoring of the spin-wave frequencies. The width of stripes and the width of gaps between them affect spin-wave frequencies in two ways. First, directly by geometrical constraints confining the spin waves inside the stripes. Second, indirectly by spin-wave pinning, freeing the spin waves to a different extent on the edges of stripes. Experimentally, the fundamental spin-wave mode frequencies are measured using an all-optical pump-probe time-resolved magneto-optical Kerr-effect setup. Our studies ad

SUBMITTER: Rychly-Gruszecka J 

PROVIDER: S-EPMC9712760 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature