Dynamic Susceptibility of Interconnected Pentagonal Spin Ice Lattices

We investigated the dynamic susceptibility in interconnected artificial spin ice by micromagnetic simulations. The resonance frequencies of five different systems were studied, starting with an interconnected Shakti lattice and introducing deformations to obtain pentagonal tessellations to reach an interconnected square lattice. Both the number of peaks and their frequencies are directly related to the initial magnetization of the system, which depends on the size of the lattice, the morphing parameter, the angle at which a magnetic pulse is applied and the intensity of the external magnetic field. The possibility of controlling frequencies by modifying the magnetic and geometric parameters of the system suggests the possibility of using these lattices in potential magnetic controllable frequency devices. © 2020 Elsevier B.V.