Tunable 2-D magnonic crystals: effect of packing density

Tian, C.; Adeyeye, A. O.

Abstract

Magnonic crystals, periodic arrays of magnetic structures, have emerged as a promising platform for manipulating and controlling spin waves in magnetic materials. Magnetic antidot nanostructures, representing 2-D magnonic crystals, are versatile platforms for controlling and manipulating magnons. In this work, we systematically investigate the effects of inter-hole spacing and lattice (rhombic and honeycomb) arrangements on the dynamic properties of Ni80Fe20 antidot structures. The dynamic responses of antidot lattices of fixed hole diameter (d = 280 nm) and inter-hole spacing (s) between 90 and 345 nm are investigated using broadband ferromagnetic spectroscopy. Multiple resonance modes sensitive to s are observed due to the inhomogeneous internal field distribution induced by the presence of holes. There is a marked variation in mode frequency, mode intensity and the number of modes for rhombic antidot lattice as the inter-hole spacing and applied field direction are varied. Our experimental results are in good agreement with micromagnetic simulations. Our findings may find application in the design of magnonic-based devices.

Citation

Tian, C., & Adeyeye, A. O. (2024). Tunable 2-D magnonic crystals: effect of packing density. Nanoscale, 16(9), 4858-4865. https://doi.org/10.1039/d3nr05582e

• Journal Article Type: Article
• Acceptance Date: Jan 26, 2024
• Online Publication Date: Jan 29, 2024
• Publication Date: Mar 7, 2024
• Deposit Date: Feb 6, 2024
• Publicly Available Date: Feb 8, 2024
• Journal: Nanoscale
• Print ISSN: 2040-3364
• Electronic ISSN: 2040-3372
• Publisher: Royal Society of Chemistry
• Peer Reviewed: Peer Reviewed
• Volume: 16
• Issue: 9
• Pages: 4858-4865
• DOI: https://doi.org/10.1039/d3nr05582e
• Public URL: https://durham-repository.worktribe.com/output/2227392