  We present results of ferromagnetic resonance (FMR) experiments and
micromagnetic simulations for a distorted, 2D Kagome artificial spin ice. The
distorted structure is created by continuously modulating the 2D primitive
lattice translation vectors of a periodic honeycomb lattice, according to an
aperiodic Fibonacci sequence used to generate 1D quasicrystals. Experimental
data and micromagnetic simulations show the Fibonacci distortion causes
broadening and splitting of FMR modes into multiple branches, which accompany
the increasing number of segment lengths and orientations that develop with
increasing distortion. When the applied field is increased in the opposite
direction to the net magnetization of a segment, spin wave modes appear,
disappear or suddenly shift, to signal segment magnetization reversal events.
These results show the complex behavior of reversal events, as well as
well-defined frequencies and frequency-field slopes of FMR modes, can be
precisely tuned by varying the severity of the aperiodic lattice distortion.
This type of distorted structure could therefore provide a new tool for the
design of complicated magnonic systems.
