Direct observation of the ice rule in an artificial kagome spin ice

By Y. Qi, T. Brintlinger, J. Cumings. 2008

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Recently, significant interest has emerged in fabricated systems that mimic the behavior of geometrically frustrated materials. We present the full realization of such an artificial spin ice system on a two-dimensional kagome lattice and we demonstrate rigid adherence to the local ice rule by directly counting individual pseudospins. The resulting spin configurations show not only local ice rules and long-range disorder, but also correlations consistent with spin ice Monte Carlo calculations. Our results suggest that dipolar corrections are significant in this system, as in pyrochlore spin ice, and that they open a door to further studies of frustration in general.

Subfields: Condensed Matter Physics, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/447192dc297af8e93a02f8ff3382befd0628109a

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Citations in the corpus

• Direct observation of magnetic monopole defects in an artificial spin-ice system (2010, background): “or by ‘shaking-out’ with a small oscillating in-plane fiel”