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We have imaged magnetization textures of permalloy films patterned intoPenrose P2 tilings (P2T) using scanning electron microscopy with polarizationanalysis (SEMPA). P2T film segments have near-uniform, bipolar magnetization,similar to artificial spin ices, but with asymmetric vertex coordination thatinduces a more complex spin ice behavior mediated by exchange interactions invertex domain walls. Numerical simulations including long-range dipoleinteractions agree with SEMPA images of as-grown P2T, and predict aferromagnetic ground state for a 2D P2T lattice of classical Ising spins.

Direct Imaging of Complex Spin Ice Behavior and Ordered Sublattices in Artificial Ferromagnetic Quasicrystals