Real-space Observation of Magnetic Excitations and Avalanche Behavior in Artificial Quasicrystal Lattices

V. Brajuskovic, F. Barrows, C.D. Phatak & A.K. Petford-Long
Thin films of Permalloy were patterned into quasicrystal artificial spin ice lattices. Lorentz TEM was used to image the magnetic induction in the lattices in the as-deposited state, after a demagnetization protocol, and after thermal annealing in a sputter deposition chamber.
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