Topology Restricts Quasidegeneracy in Sheared Square Colloidal Ice

Abstract

Recovery of ground-state degeneracy in two-dimensional square ice is a significant challenge in the field of geometric frustration with far-reaching fundamental implications, such as realization of vertex models and understanding the effect of dimensionality reduction. We combine experiments, theory, and numerical simulations to demonstrate that sheared square colloidal ice partially recovers the ground-state degeneracy for a wide range of field strengths and lattice shear angles. Our method opens an avenue to engineer a novel class of frustrated micro- and nano-structures based on sheared magnetic lattices in a wide range of soft- and condensed-matter systems.

4 pages, 4 figures, 1 page supplemental

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Cited by in corpus (8)

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• Toroidic phase transitions in a direct-kagome artificial spin ice
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