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

Brajuskovic, V.; Barrows, F.; Phatak, C.D.; Petford-Long, A.K.

FIB LTEM magnetic materials artificial spin ice lattice focused ion beam milling sputter deposition quasicrystal Lorentz microscopy Permalloy thermal annealing magnetron sputtering transport of intensity equation microsopy quantum materials TEM microscopy thin films

Year

2017

Source Name

pub_98_brajuskovic_realspace

Contacts

C.D. Phatak (cd@anl.gov)

DOI

10.18126/M22P48 View on Datacite

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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.