Classical topological order in the kinetics of artificial spin ice
نویسندگان
چکیده
منابع مشابه
Topological frustration of artificial spin ice
Frustrated systems, typically characterized by competing interactions that cannot all be simultaneously satisfied, display rich behaviours not found elsewhere in nature. Artificial spin ice takes a materials-by-design approach to studying frustration, where lithographically patterned bar magnets mimic the frustrated interactions in real materials but are also amenable to direct characterization...
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Artificial spin ice, made up of planar nanostructured arrays of simple ferromagnetic bars, is a playground for rich physics associated with the spin alignment of the bars and spin texture associated with the magnetic frustration at the bar vertices. The phase diagram is exotic, showing magnetic monopole-like defects and liquid and solid phases of spins arranged in loop states with predicted chi...
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We present a large class of three-dimensional spin models that possess topological order with stability against local perturbations, but are beyond description of topological quantum field theory. Conventional topological spin liquids, on a formal level, may be viewed as condensation of stringlike extended objects with discrete gauge symmetries, being at fixed points with continuous scale symme...
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L. D. C. Jaubert, 2, 3, 4, ∗ M. J. Harris, T. Fennell, R. G. Melko, 8 S. T. Bramwell, and P. C. W. Holdsworth Laboratoire de Physique, École Normale Supérieure de Lyon, Université de Lyon, CNRS, 46 Allée d’Italie, 69364 Lyon Cedex 07, France. Max-Planck-Institut für Physik komplexer Systeme, 01187 Dresden, Germany. Theoretical Physics, Oxford University, Wolfson College, Oxford, OX1 3NP, United...
متن کاملFragmentation of magnetism in artificial kagome dipolar spin ice
Geometrical frustration in magnetic materials often gives rise to exotic, low-temperature states of matter, such as the ones observed in spin ices. Here we report the imaging of the magnetic states of a thermally active artificial magnetic ice that reveal the fingerprints of a spin fragmentation process. This fragmentation corresponds to a splitting of the magnetic degree of freedom into two ch...
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ژورنال
عنوان ژورنال: Nature Physics
سال: 2018
ISSN: 1745-2473,1745-2481
DOI: 10.1038/s41567-018-0077-0