Coupled magnetic nanostructures: Engineering lattice configurations

Talapatra, A.; Adeyeye, A.O.

Abstract

We present a systematic investigation of tunable magnetization dynamics of coupled magnetic nanostructures, arranged in one-dimensional arrays of horizontally and vertically coupled linear chains and in two-dimensional arrays of square artificial spin ice lattice. The spatial distribution of the demagnetization field is markedly sensitive to the lattice arrangement, leading to a significant modification of the collective behavior of static and dynamic properties of the arrays. Using ferromagnetic resonance spectroscopy, the engineering of demagnetizing factors with various lattice arrangements has been established quantitatively. The signature of distinct spin wave modes, spatially localized in the constituent nanomagnets, was observed and tuned by the lattice arrangements and applied field orientation. The experimental results are well complemented with micromagnetic simulations.

Citation

Talapatra, A., & Adeyeye, A. (2021). Coupled magnetic nanostructures: Engineering lattice configurations. Applied Physics Letters, 118(17), Article 172404. https://doi.org/10.1063/5.0045235

• Journal Article Type: Article
• Acceptance Date: Apr 14, 2021
• Online Publication Date: Apr 26, 2021
• Publication Date: Apr 26, 2021
• Deposit Date: May 12, 2021
• Publicly Available Date: Apr 26, 2022
• Journal: Applied Physics Letters
• Print ISSN: 0003-6951
• Electronic ISSN: 1077-3118
• Publisher: American Institute of Physics
• Peer Reviewed: Peer Reviewed
• Volume: 118
• Issue: 17
• Article Number: 172404
• DOI: https://doi.org/10.1063/5.0045235
• Public URL: https://durham-repository.worktribe.com/output/1248275