Spin dynamics in permalloy nano-ellipses for honeycomb and square lattices

Spin dynamics in permalloy nano-ellipses for honeycomb and square lattices

Blog Article

We report experimental and theoretical studies of spin dynamics in lattice structures of permalloy (Ni80Fe20) nano-ellipses, with four different types of networks including Mushroom Gummies honeycomb and square lattices.The lattices are patterned at the center line of the co-planar wave guide and consist of non-contacting or contacting ellipses.Micromagnetic simulations show excellent agreement with the broadband ferromagnetic resonance (FMR) experimental results.We find the existence of a spin-wave mode localized in the Puzzle vertex region of the contacting nano-ellipse network.Our finding has important implications when designing an artificial spin ice (ASI) network for functional magnonics.