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The spin-wave dynamics of the ferromagnetic nanoarrays termed artificial spinice (ASI) are known to vary depending on their magnetic microstate. However,little work has been done to characterise this relationship. Recent advances incontrol over the magnetic configuration of ASI bring designs harnessing theinterplay between spin-wave eigenmodes and the microstate within reach,offering diverse applications including reconfigurable magnonic crystals,microwave filters and microstate read-out probes. These designs hinge on astrong understanding of the underlying spin wave-microstate correspondence.  Here, we analyse the effects of the magnetic microstate on spin-wave spectraof honeycomb ASI systems via micromagnetic simulation. We find the spin-wavespectrum to be highly-tunable via the microstate to an enhanced degree relativeto existing magnonic crystals, with mode shifting and (de)activation realisedby reversing individual nanoislands. Symmetries of ASI systems and thechirality of magnetic defects are found to play important roles in determiningthe high-frequency response.

Sculpting the Spin-Wave Response of Artificial Spin Ice via Microstate Selection